Made of stainless steel,super wear-resisting,strong and durable. Fit for 3mm-10mm wire rope,climbing rope or twine. Mute pulley,no noise,smooth and effortless.It can be mounted on wood,walls and metal. Suitable for home fitness and outdoor work.Can be used for shoulder arm exercise fitness equipment. Type: U Type Single Wheel Pulley Block Overall Height: 60mm Overall Base Size: 68x30mm U-Type Groove Depth: 6mm U-Type Groove :inner width:16mm,outer width:22mm Wheel Diameter: 48mm Attention: The own loadbearing of the pulley is 800 pounds. But there will be a big difference depending on the material and angle used. Used on the wood at vertical angle, the loadbearing is about 200 pounds. It can withstand 800 pounds at a 45 degree angle on a concrete wall. colour:silver Material: steel<br><br>Package included： 1 x U-Type Single Wheel Pulley Block 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.