Dear Sir Madam, Product name:Industrial Caster Wheels Manufacturer Name:TFE-B2504 TFE-B2505 Material:PP PVC TPR Type:Swivel with brake Size:2.5 3 4 5 inch Finished:Galvanized iron Bearing:Roller Bearing Color:Black, white, red, grey, orange Usage:Hand Cart Application:Industry transportation, trolley