A.O. 1" THICK 2 3/4" X 3 3/4" FOAM SPONGES (FOUR SIDES)

$0.76 ~~$1.1~~ In stock

A.O. 1" thick foam sponges from Supergrit Abrasives, sized 2 3/4" x 3 3/4" with four sides. Available in multiple grits and in single-piece or pack-of-10 quantities.

Thickness: 1"
Dimensions: 2 3/4" x 3 3/4"
Four-sided foam sponge
Grit options: 80, 100, 150, 180, 220
Quantity options: 1PC or Pack of 10

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Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (4.6 / 5 · 5 reviews)

Joshua V. ★★★★★ Oct 22, 2026

Finally found a sanding block that doesn't flex too much on curved edges, and these hold up to wet sanding without breaking apart. The four sides are a lifesaver for getting into tight corners without swapping pads.

Aurora ★★★★★ Oct 19, 2026

These things are chunky at a full inch thick, and the four-sided design means I get a lot of mileage before I have to flip to a fresh face. The 2 3/4" x 3 3/4" footprint fits my hand perfectly for detailed sanding.

Christopher T. ★★★★★ Oct 18, 2026

I’ve been using these 1" thick foam sponges for my wet-sanding projects, and the four-sided design saves me so much time flipping between grits. The 2 3/4" x 3 3/4" size fits perfectly in my hand, too.