Clear Nipple Self-adhesive Rubber Feet Small Bumpers (13mm D X 6mm H/0.52"d X0.24"h) 50pcs 1/2" (12.7mm) in diameter x .0.20" (5.1mm) height (approx) Nipple shape bumpers Peel off backing to use 50pcs pack Provides a non-slip, non-scratch surface