Easily and securely attach your RV fittings with the Camco 3.5 Inch RV Sewer Hose Twist-It Clamps 2-Pack. Featuring a convenient thumb grip to tighten, no tools are needed to secure your fittings. This two-pack, made of metal, will help you confidently enjoy your RV experience. Made of metal, the clamps measures 1.2 in. in length, 8.7 in. in width, and 6.1 in. in height.