Spectre Magna-Clamps 1168 are designed to fit 5/32 inch inside diameter vacuum hoses that have a maximum outside diameter of 0.353 inches including any covering. Included are 2 push-on clamps that feature a two-piece chrome-plated aluminum housing that provides secure tightening at an affordable price. Magna-Clamps are designed to perform as well as they look and are ideal for race, street and show.