Features 1、Made of PVC material, strong and wear resistant, strong bearing capacity, smooth and not hurting the ground. 2、The splicing between materials is firm, excellent workmanship, and strong bearing capacity. 3、There are two types of universal wheels with brakes and without brakes. Casters with brakes 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 and equipment, etc. 5、Safety,the wheels have brakes,ensuring the safety of people and goods at any time and at any angle. Specification Item Type: Caster Wheels Material: PVC Steering: Universal Specification: 3 Inches Screw Specification: M10 x 30 Wheel Diameter: Approx. 75mm / 3.0in Wheel Thickness: Approx.23mm / 1.0in Uses: Industrial Casters Applicable Scenarios: Medical Equipment, Shelves, Machinery Equipment, Etc. Package List 1 x Caster Wheels