Just the pads
Knee Pads + Replaceable Gel + Carry Case
This product sold out 12 times last year. We encourage you to take advantage of the limited sale and buy now.
PS: Grindstone is ONLY available here, don't buy fakes on Amazon/eBay
Not sure? Order them. You've got 60 days and we cover return shipping.
D
Tiling a whole ground floor last week and got up at the end of the day without that stabbing feeling in my kneecaps. The gel actually spreads it out instead of squashing flat after an hour.
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M
Every pair I have owned slides down to my ankles by lunch. These have a strap above the calf as well, so they just stay put. Sounds small, it is not.
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T
Went from a concrete pour straight onto the client's oak floor and left no marks. Six months on a slab most days and the gel has not packed down like the cheap pairs I kept binning.
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Take two full months to decide. If it isn't right for you, contact us within 60 days of delivery and we'll refund your order.
2,400+ contractors, from flooring to concrete crews, run Grindstone on the tools every day.
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What happens when your knees stop being the thing you think about halfway through the day
You kneel down on a slab and it is the pad taking it, not your kneecap. The gel spreads the load down the shin instead of concentrating it on one bone.
"First day on a tile job and I forgot I was kneeling. That never happens."
No shuffling to find a soft spot. No kneeling on a folded towel because your old pads gave up.
The two-strap system is the difference. One above the calf, one below the knee, so the pad stays put when you move between spots.
You stop reaching down to yank them back up every ten minutes. Over a full day that is a hundred small interruptions you no longer have.
The stiffness getting out of the truck in the morning eases off. You get up off the floor without pushing on your thigh to do it.
Not because you changed how you work, but because your knees stopped absorbing eight hours of hard surface every day.
Cheap pads are foam, and foam is done in a season. The gel is still spreading the load the way it did on day one, and the cap has taken everything the site has thrown at it.
That is the whole idea. One pair that lasts, not a disposable set you replace every few months and never think about.
Three layers, each doing a different job:
It is the same construction the expensive pads use, without the expensive price.
The motor system stays under 40dB, quiet enough for shared spaces. It's compact enough to pack in a travel bag, charges via a magnetic port that's carry-on friendly, and has a lock function so it can't switch on by accident. It's designed to work comfortably lying down, seated, or standing.
The Full Kit is the pads plus a pair of cut-resistant work gloves and a carry case. Pair Only is the pads on their own.
Work in them. If they are not right, send them back for a full refund. Return shipping is on us, and refunds are processed within 3-5 business days of us receiving them.
Free shipping on every order. Delivery typically takes 6-10 business days. You get tracking as soon as it leaves the warehouse.
Email our support team with your order number for a prepaid return label — the label won't reference the product name. You have 60 days to return the item for a full refund. Please clean the device before sending it back; refunds are issued within 3–5 days of receipt.