Shim, Neoprene 1" x 1" Square x 3/8" Thick w/Adhesive

Shim, Neoprene 1" x 1" Square x 3/8" Thick with counter bore through hole. 3M Adhesive peel off backing. 

Through Hole Diameter: 7/32"

Counter Bore Diameter and Depth: 7/16" Diameter, 7/32" Depth