Perfect size: diameter 50 mm, wheel width 17 mm, mounting height 67 mm, mounting stem M10 x 25 mm High quality materials: the wheels are made of PTE material and sturdy shell makes our universal tool wheels wear-free and very strong and durable. Flexible Choice: Package includes 2 M10 casters without brakes and 2 M10 casters with brakes. Each roller has a load capacity of 30 kg and a set of 4 has a total of 120 kg. Silent: Built-in low noise bearings, very quiet and durable. The wheels can be rotated 360 degrees. It is the ideal choice for all DIY furniture with mobile casters. Wide range of applications: Swivel casters are used in homes, schools, shops and hospitals. Also great for coffee tables, plant racks, bookshelves, shoe racks, shopping carts and workbenches. Product Description TPE material, wear-resistant and rust-resistant, strong and durable. Each bike has a payload of 30 kg and a total payload of 120 kg. Rotate 360 degrees to move freely. Built-in silent bearings, silent movement. Pushing and pulling lightly will not damage the floor. Technical index: Material: soft rubber and TPE Color: silver Weight: 600g Tire width diameter: 17 mm / 0.66 inch Wheel diameter: 50 mm / 1.96 inch Thread length: 25 mm / 0.98 inch Thread diameter: 10 mm / 0.39 inch Installation height: 67 mm / 2.63 inch Mounting rail specification: M10 Quantity: 4 pieces Package Contents: 2 swivel castors without brakes< br/> 2 * swivel casters with brake