PREMIUM MATERIAL -- Single pulley roller made of 304 stainless steel, with great sturdy, anti-rust, wear-resistance and corrosion-resistant with highly strong structure. Can bear-loading up to 35KG SWIVEL RING -- M15 Single Pulley Block with turning wheel, rotation to prevent rope/cable/wire from knotting for your convenient use. MINI SIZE -- Stainless Steel Wheel: 0.59 inch/15mm x 0.24 inch/6mm(D x W), Eye Diameter: 11mm /0.43 inch, Total Height: 60mm/2.4 inch, mini and compact, easy to carry WIDE RANGE OF APPLICATIONS -- Mini swivel pulleys are compatible with rope or cord for indoor and outdoor use. Suitable for household, garage, machine loading, curtain systems, clothes lines, dog pulley systems and other flexible sliding applications. Color: Silver Material: Steel Weight Capacity: 77.2lbs (35kg) Rotation Design Prevents rope, cable, or wire from knotting. Easy installation and convenient to use, helps make tasks easier. Smoothly Turning Wheel Rustproof and corrosion-resistant with smooth sliding function. Features heavy-duty capacity, practical design, and solid construction. Package Included 4 x M15 Single Pulley Block Note: Light and screen display differences may cause slight variation in color. Measurement allows an error of +/- 1-3cm.