Selden makes its popular Cam Cleat 38 in two versions. Its standard version is made of carbon fibre-reinforced polyethermide, which resists heat friction. This aluminum version is hardcoat-anodized and has a higher working load 396 pounds (180kg) than the standard version's 264 pounds (120kg). It is designed to handle rope diameters of 5/32 in. (4mm) to 15/32 in. (12mm). Its hole spacing measures 1 1/2 in. (38mm) on center. The same size composite cam cleat has model number SLD 4332010101R.