Features： 1、Made of PVC material, strong and wear‑resistant, strong bearing capacity, smooth and not hurting the ground. 2、The materials of stem casters are firmly spliced, well‑made, and have strong bearing capacity. 3、The brake bracket is made of high-quality materials, one-button brake, easy to use, fast and stable. 4、Wide range of applications, suitable for medical equipment, shelves, machinery equipment, etc. 5、Our wheels are gentle enough to use on hardwood, carpet, tile, and more without leaving any scratches or marks. Specification： Item Type: Stem Casters Material: PVC Steering: Universal Specification: 2 Inches Screw Specification: M10x25 Bearing Type: Sealed Double Bearing Wheel Diameter: Approx.50mm / 2.0in 4 Wheels Load: 210kg Wheel Thickness: Approx.23mm / 1.0in Uses: Industrial Casters Applicable Scenarios: Medical Equipment, Shelves, Machinery Equipment, Etc. Package List： 4 x Stem Casters