Premium Material: Made of 304 stainless steel, rust and wear resistant with solid structure, manufactured by strict process, reliable and durable. 360 Degree Flexible Swivel. Rotatable top ring 360 degree rotation for easy rope handling. Prevents rope knotting, easy to use, smooth roller ensures excellent rope guidance. Small Size, Large CapacitySize: M15; Wheel Diameter: 15mm/0.59inch; Wheel Width: 6mm/0.23inch; Swivel Ring Width: 11mm/0.43inch; Total Length: 60mm/2.36inch; Maximum Load: 35kg. What a simple but powerful roller. Wide Applications Flexible sliding roller with high load capacity for many applications. Utilizing gravity and slip for lifting, transferring or pulling work, designed for use with rope or cord indoors and outdoors with smooth sliding function. Package quantity: 12 pieces Note: The data is all measured manually, please allow an error of 1-3 cm. Due to the difference in light and display, there will be a certain color difference, the actual item received shall