Pb fastener pu rubber feet black and clear pb fastener bs 32 bk r 10 these rubber feet 127 x 30mm from pb fastener amp components or bumpers as they also known have been designed with a square top and an adhesive base that remain incredibly versatile and have hundreds of uses whether it be the office workplace or home these rubber feet are ideal for protecting doors and walls for instance they can prevent picture frames from moving while keeping them scratch free they can als