What is the size of these? The description says 1 inch (either diameter or height, I'm not sure), but a pic shows a woman with a much bigger one.

The diameter is 1” so the height is half of that. I put them on the bottom of a heavy stone cutting board and they compressed to about 1/4”

can I put these under a 2.5'x5' table 24" high to keep it from moving around the room? I have 8 tables in an elementary classroom. must prevent movin

Probably not your best solution. These are intended more for isolating electronic equipment. They are small, soft, gel-like domes that adhere with a sticky backing. If you were to put them under a piece of furniture, they'd likely get ripped off if moved. I think you'd be better off with a rubber base that screwed on permanently.

Number of Items	1
Recommended uses for product	desk
Special features	Non-Slip
Fixture type	Removable
Number of pieces	4
UPC	892955002945
Unit count	1.0 count
Manufacturer	Isolate It!
Model Number	0510116-50
Color	Black
Package Dimensions	17.78 x 12.7 x 1.78 cm; 23 g
Special Features	Non-Slip
Item Weight	23 g

1" Sorbothane Hemisphere Rubber Bumper Non-skid Feet with Ad

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