Heyco Strain Relief Bushings securely anchor, insulate, and protect cables at panel entry points. The bushings protect the lifeline of electric/electronic products by absorbing the forces of pull, push, twist, and flex. Options include nickel-plated brass, nylon, steel/plated steel, and polystyrene materials in a variety of colors (black, brass, gray, natural, or white) and 8mm to 180mm cable diameter range.