The Adhesive backing is peel and stick 3M adhesive. 1/8" Thick 3M Adhesive Stick-on Pads for Electronics. Solid Rubber Feet with 3M backing. 1 1/2" Long x 1/2" Wide Oval Silicon Rubber Stick-On Feet. These are adhesive backed solid rubber feet for guitar pedals, and can be used for all electronics.
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