The SafeLink Whizzler Swivel Cap is designed for use with our 7.5' aluminum post. Allows a single user increased mobility to work from a stationary anchor point with a 360° degree swivel. Full rotation with 360° swivel anchor point Use with FS-EX5501-5 aluminum post Materials: Aluminum post, forged steel D-ring Weight: 10.5 lbs. Length: 16" (406.4 mm) Weight Capacity: 130-310 lbs. (59-141 kg) Minimum Breaking Strength: 5,000 lbs. OSHA Standards: 1926.502 Mounting Surface: Multi