YARKOR Table Shims, 80 Piece Jar, Premium Soft Furniture Levelers Restaurant Table Shims, Home Improvement DIY Levelers - Rubber Type Texture, Which Creates a Firm, Non-slip, Perfect for Doors,

These are great, they lock together to stack and are a flexible material that bends and the worked perfectly to wedge some pipe in a round hole

Bought these for the restaurant I work at. As described, work perfectly to level tables (as our floor is not perfect) shipping was quick.

Though it would ve a bit bigger, but works just fine.

I own a historic event space. The floors are wood and due to age, are super uneven. These wedges are a lifesaver for keeping chairs and tables from wobbling.

These are the best ones that I’ve used for commercial application. In Arizona they do not melt (as some of their competition does)