1. HEAVY DUTY DOUBLE. The wheel is supported by heavy duty bearings on each side with precision steel balls, ensuring lower noise, less friction, and more flexible rolling. 2. MADE OF NON-MARKING POLYURETHANE. Constructed with non-marking polyurethane as the main material, this caster offers excellent durability, shock absorption, and floor protection. 3. REINFORCED STEEL PLATE. The swivel plate of this leveling caster is designed to be thicker and stronger using advanced cold-rolled technology. Each caster supports up to 150 lbs, with a total capacity of 600 lbs for a set of 4. 4. MORE STABLE AND DOUBLE HEAVY DUTY. When the leveling foot is extended to the same height as the wheel, the total load capacity reaches 1100 lbs with a set of 4 casters. The leveling foot also acts as a stabilizer on uneven floors, enhancing furniture stability. 5. CONVENIENT FOR HOUSEHOLD TASKS. For cleaning tasks such as sweeping, simply raise the leveling foot and lower the wheel to move furniture with ease. Product Parameters Wheel diameter: 2 inch (50 mm) Wheel width: 25 mm Load capacity: 50 kg Bottom plate: 70 x 51 mm Hole distance: 53 x 35 mm Shaft size: 6 mm Installation height: 74 mm Note: Due to different production batches, slight variations in appearance or color may occur, which do not affect functionality. Color: Red Material: PVC/PP/PU Package Contents: 4 x Caster Wheels Note: Light reflection and different display settings may cause slight color differences between the image and the actual item. Measurement may vary by +/- 1-3 cm.