Knackers Blade Refills — 6-pack
Electric Fabric Shaver + Replacement Blades
Your couch isn't old. It's pilled. The Sofa Saver removes pilling from upholstery in a single pass — without cutting holes, without dying halfway through the second cushion, and without needing AA batteries at 10pm on a Sunday.
One-time purchase — no subscription. 30-day money-back guarantee. Cancel-free, no recurring charges.
The pilling problem, in their words
Independent publications and furniture makers on why couches pill — and that it's fixable, not fatal.
“Before you consider replacing your furniture or dropping hundreds on reupholstering it, try this trick first.”
“A $12 purchase for a $1,400 sofa.”
“Pilling is not a defect. It is simply part of the break-in process for many upholstery fabrics.”
“When you start to see little dark pills forming on your sofa, it tends to make the fabric look dingy, dirty and old.”
Published commentary about fabric pilling in general. These outlets have not reviewed or endorsed Knackers or the Sofa Saver.
What makes it different.
The blade that actually finishes the job
Most fabric shavers use a 2-leaf blade. The Sofa Saver uses a 6-leaf stainless steel blade spinning at 9,000 RPM — three times the cutting surface per rotation. It sits behind a mesh guard that only lets raised pills through. The weave underneath never contacts the blade — that's how it removes pilling without removing fabric.
The lint chamber that doesn't stop you mid-job
The most common complaint across 200,000+ competitor reviews is a chamber that clogs every 30 seconds. This one is large, transparent, and twists off in one motion — designed to hold a full three-seater's worth of pills without stopping. Either very satisfying or slightly horrifying, depending on how long your couch has been pilling.
The settings that prevent the damage
Cheap shavers cut holes because they have one fixed speed and one fixed guard height. Low and wide for cashmere, bouclé and fine wool; high and tight for denim, thick cotton and standard upholstery. The right setting for the fabric in front of you — not the same setting for everything. The display tells you exactly where you are.
40 minutes. USB-C. Not AAs.
40+ minutes on a full charge — long enough to do the whole couch without stopping. Charges via USB-C; the cable is in the box. Charge it the night before, use it the next morning. The couch will be done before your coffee is cold.
What's in the box.
Shown: the Bundle. Device Only ships the device, USB-C cable & fabric guide; the Deluxe Gift Box adds 12 blades and gift packaging.
- Knackers The Sofa Saver device9,000 RPM · 6-leaf stainless blade · 3-speed selector · adjustable guard · transparent lint chamber · 3,000 mAh battery
- 6 replacement bladesOne pre-installed, five in reserve. Each lasts about 3 months of regular use.
- USB-C charging cableIn the box. Not a wall wart. Not AAs from the servo.
- Fabric safety guidance cardWhich fabrics, which speed. The card that prevents the bad reviews about holes.
Specifications
| Blade | 6-leaf stainless steel |
|---|---|
| Motor speed | 9,000 RPM |
| Speed settings | 3 (low / medium / high) |
| Guard height | Adjustable |
| Battery | 3,000 mAh lithium, USB-C rechargeable |
| Run time | 40+ minutes per charge |
| Lint chamber | Large, transparent, twist-off |
| Warranty | 2-year replacement |
Watch it work.
One pass. Pills gone.
Same cushion. Five minutes apart.
The couch you've been living around.
What happened to their couches.
Had my beige corduroy three-seater for four years. The cushions had gone grey and I couldn't work out why — I'd vacuumed it, washed the covers, tried everything. My sister sent me this link. The couch looks better than it did the day we moved in. My partner is furious I didn't find this two years ago.
— Sarah M., Sydney · Verified purchaseWe'd had a throw blanket on the couch for about eighteen months. Just lived around it. Saw a video of this on Instagram, bought it that night. One hour later the throw blanket was in the bin. I didn't even like the throw blanket.
— Jess L., Brisbane · Verified purchaseHad a professional upholstery cleaner quote me $1,600 to 'refresh' my three-seater. Something felt wrong about that. Found this instead. Fifty-five dollars. Two hours. The sofa looks the way it did when we bought it.
— Tom R., Melbourne · Verified purchaseUsed it on a velvet two-seater I was honestly about to take to the kerb. My flatmate came home and asked when the new couch arrived. I paid fifty-five dollars. I didn't tell her.
— Priya K., Melbourne · Verified purchaseNot all fabric shavers are the same thing.
The $9 one from Kmart isn't a cheaper version of this. It's a different product built for a different job.
| The $9 unit | The Sofa Saver | |
|---|---|---|
| Blade | 2-leaf, fixed | 6-leaf stainless steel |
| Motor speed | Underpowered | 9,000 RPM |
| Battery | 2× AA (dies after 1–2 cushions) | 3,000 mAh USB-C rechargeable |
| Run time | One cushion, maybe two | 40+ minutes — a full three-seater |
| Lint chamber | Small, opaque, clogs every 30s | Large, transparent, twist-off |
| Fabric guard | Fixed, one setting | Adjustable height + 3 speeds |
| Warranty | None / 90 days | 2 years, replacement not repair |
| Designed for | A jumper on a table, used twice | A full couch — cushions, arms, back panel |
| Price | $9 | $54.95 (bundle) |
The $9 unit is built for a jumper on a table, used twice. For that job, it's fine. Your couch is three cushions, two arms, and a back panel that needs 40 uninterrupted minutes. The $9 unit cannot do that job. It never could.
Frequently asked questions
Only if you use it on a fabric it's not designed for, at a speed it's not designed for, without a test patch first. Start on low speed, test a hidden section, and use the fabric guide in the box. Loose-knit fabrics, lace, suede and leather are on the "do not use" list.
Free shipping on every AU order, no minimum. We dispatch within 1–3 business days, and most orders arrive within 7–12 business days depending on your state and how remote you are. Every order is tracked — you'll get a tracking link by email the moment it ships. If tracking stalls for 5+ business days, email us and we'll chase it.
40+ minutes on a full charge — all cushions, both arms, the back panels, without stopping. Charges via USB-C; the cable is in the box.
2-year replacement warranty. If it develops a fault within two years, we replace it — no account creation, no original packaging, no help desk.
On most standard upholstery, yes. On heavily-pilled or thick pile you may need a second pass on the worst sections. If your couch is an outlier and the results disappoint you within 30 days, we'll refund you in full.
No — it's designed for fabric pills and surface fuzz, not raw pet hair. A rubber brush or lint roller does that job better and costs less.
The bundle includes the device plus 6 replacement blades (a 3-month supply), saves $10 versus buying blades later, and means you won't run out mid-job in month three. Most people buy the bundle and don't look back.
30-day money-back guarantee. If your couch looks the same after using it, contact us within 30 days of delivery for a full refund. We'll send you a return label.
“I nearly paid $1,800 for a new three-seater. We spent $54.95 instead. Genuinely annoyed it took this long to find this.”
— Marcus T., PerthYour couch is one afternoon away from looking the way it did when you bought it.
$54.95. Free AU shipping. 2-year warranty. 30-day guarantee. If it doesn't work on your couch, we give you your money back.
Shave the couchYou can stop rearranging the throw blanket now.