1-1/4" Dia. Self-Adhesive Rubber Feet for PC Cases (4/pkg) Ace Techman knows how frustrating it can be when assembling a system that functions at its optimal performance when that you need are a few small parts like screws or nuts. StarTech.com carries all parts big or small. These Self-Adhesive Rubber Feet for PC Cases provide the best possible traction for your workstation.