FIT FOR 1.5 inch ROPE: The clamp fits any climbing rope with 1.5 inch diameter. Use bolts to the clamp tightens around your rope for maximum safety and an efficient workout. The rope clasp has a max load of 400 lb, the load may also depend on your rope. SAFETY: Made of best grade hevy-duty iron,this climbing rope attachment is strength and durability, for your rope climb workout! You should drill holes into the rope and fasten the hardware. Easy to install and fix: Includes a heavy-duty metal eyehook for easy attachment nearly anywhere.Overall building upper body strength, burning fat, increasing endurance and improving grips. INDOOR EXERCISE CLIMBING ONLY: Made for strength and durability that can support.Great battle rope and climbing rope for kids. Supervision and safety padding should be utilized at all times. ATTACH TO CARABINER: Best used with a heavy-duty carabiner clip to easily connect the climbing rope to an attachment for hanging in your cage rig or garage gym - the best and safe way to perform rope climbs. size:38mm Material:iron colour:black Package Contents: 4 x climb rope clamp Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.