Do you use resistance bands so often you wear out the handles? Replace them with Foam Handles by easily attaching them to stackable resistance bands, and get a comfortable grip for your workouts. ProSourceFit Resistance Bands Foam Handles come in a pair to replace old handles. The extra-wide handle is great for both small and large hands and is made of soft foam for a firm grip and improved workout. They attach easily to almost any stackable resistance bands.