1.Material: Movable elements with Lshaped brackets, made of TPE rubber and chromeplated steel, stable and durable. The Lshaped mounting plate saves space, is easy to install, and solves the problem that the corner cannot be installed. 2.Safety: 5 oval fixing holes are used to fix the guide rail and are not easily deformed. The corners are reinforced to make the mounting plate more stable. Thickened roller rivets, highspeed rotary bearings, antislip, silent. 3.Practicality: Our rollers can be used to replace various damaged or hardtooperate household appliance and furniture rollers. Provides excellent stability and load capacity. Suitable for solid wood floors, ceramic tiles, lawns, marble floors, carpets, etc. 4.Load capacity: 1inch load capacity is 33 kg (72 pounds), 1.25inch load capacity is 48 kg (105 pounds), 1.5inch load capacity is 66 kg (145 pounds), 2inch load capacity is 81 kg (178 pounds).