The Tama Hold Tight Washers are stainless steel washers for snare drums. The Hold Tight Washers contain a rubber ring so the tension rod pushes both the cup washer and the rubber ring. Normally vibrations will eventually loosen the tension rod. But the softness of Hold Tight's rubber ring keeps it in contact with both the tension rod and the hoop at all times and maintains friction between them so that tension is always preserved. Contains 20 pieces. The main features of The Tama Hold Tight Washers include: Made by Tama Extra strong Stainless steel washers Set of 20 Contains rubber ring