Ideal for classroom chairs/desks, cafeteria or library tables/chairs or anywhere quiet is necessary. Durable, 3/16" thick, 100% polyester/latex felt. Specially designed 1 1/4" diameter circles fit most chair/desk feet. Easy to install, extra-strength adhesive bonds permanently. Shape: Circular; Diameter: 1.25"; Thickness: 0.19"; Material(s): Polyester Felt.