- 5PCS Rollerblade Office Chair Wheels 11x7.5x3CM - Description: - Material: Our heavy-duty chair wheels are made of industrial grade steel, precision ball bearings and durable polyurethane chair casters. - Sturdy and durable: The entire support frame and internal parts are made of high-grade steel, which can achieve easy rolling and durability for many years. Heavy-duty design (each group of 5) can support up to 132 pounds. - Quiet rolling: With these casters, stay focused and relaxed. The caster rotation and precision ball bearings in the shaft provide smooth and easy rolling without any squeaking or noise. - Unique modern style: These casters are designed with common standard size valve stems, so you can turn any work chair or stool into modern eye-catching furniture. - Applicable to all floors: Stop damaging expensive hardwood floors. Many chair wheels use cheap, low-quality materials to damage the floor. we do not have. Our inline wheels are wrapped in a soft polyurethane material to ensure that they will not scratch or leave marks on any surface. - Specifications: - Color: transparent - Size: 11*7.5*3cm - Material: PU - Model: 5pcs Chair Wheels - Type: Office Chair Wheel - Features: Universal Stem Size Easy to Install - Room: Any Room, Home Office/Study