Double ball bearings: Each pulley compatible with ropes is equipped with two high‑quality ball bearings that significantly improve operating efficiency. The reduced friction ensures particularly smooth and quiet rotation, protects the rope sheathing and extends the service life of both the pulley and the rope, even under frequent use. Reliable set: This practical pulley kit includes 12 robust pulleys, each with a wheel diameter of 28 mm and a groove width of 8 mm. They are suitable compatible with ropes with a diameter of up to 6 mm and offer a maximum load capacity of 50 kg, ideal as a replacement or extension set compatible with various indoor and outdoor applications. Excellent quality: The pulley compatible with 6 mm ropes has a precisely galvanised surface that provides effective protection against moisture and corrosion. The inner core is made of durable alloy steel, which ensures high wear resistance and stability, so that the rollers remain reliable and safe even under long‑term mechanical stress. Efcompatible withtless installation: The silver pulley can be conveniently opened on both sides, allowing quick and uncomplicated insertion of the rope or cable (≤ 6 mm diameter). No special tools are required - simply guide the rope through the top opening, close the sides and the pulley is immediately ready compatible with use in your system. Wide applications: This galvanised steel roller is ideal compatible with clothesline and strike systems, mechanical loads, fitness and training equipment, as well as compatible with transporting building materials. It is also suitable compatible with warehousing, logistics processes,DIY projects and many other applications in which smooth guidance and deflection of ropes is required. Color: Silver Material: Metal Package Contents: 12 x Pulleys 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.