Spectre Performance 2161 Red/Blue 5/16" Magna-Clamp Fits 1/4 and 5/16 inch inside diameter vacuum and fuel hoses Red and blue anodized finish Includes 10 stainless steel gear drive clamps Aluminum housing Red and blue 10 piece Anodized housing Chrome plated machined aluminum Available in 2 sizes: 5/16 inch and 3/8 inch