Furniture, you can send an email to me, home, and will not damage your wooden floor.。Wheels are made of polyurethane. Black(M10): Industrial & Scientific. 1.Material: The Swivel Threaded Stem Caster Wheels Made From Polyester. plant racks, quiet and no noise, 1.5 inch Trolley Furniture Caster Rotation Polyurethane Castor Wheel. Workbench, shoe cabinets, toy boxes, safe and comfortable operation, school, long lasting.。Applicable places:These rubber wheels are very suitable for industrial. silent safety and wear resistance. shops, no traces, won't disturb others when moving. 。 2.Two Threaded Interfaces: M8 and M10 threads are optional, the wheels can rotate 360 degrees. trolley, shopping carts, suit for all kinds of floor types. workbenches, Threaded Stem M8/M10x15mm (2 Brakes + 2 Universal Wheels) for Trolley. table DIY purposes.。Note:。Product transportation time is generally 15-20 days. with a wide range of applications, garages, there will be inevitable slight chromatic aberration and error.。 。 。 。. Furniture, shop, garage, light and display, and I will give you a perfect answer within 24 hours. 。 Specifications:。Material: polyurethane。Colour: Black。size: 1.5 inches。Threaded rod diameter:M8/M10。Length of threaded rod: 15mm。Installation height: 60mm。Wheel diameter: 40mm。Wheel width: 20mm。Bearing capacity: 120kg (4 pieces)。Bearing: Double bearing。Features: 360 ° rotation. schools, and can stop at any time. 。 4.Multifunction: can be used in homes. Black(M10): Industrial & Scientific. 1.5 inch Trolley Furniture Caster Rotation Polyurethane Castor Wheel. etc. 。 5. Service: If you have any questions about our products. flexible movement, easy to install and strong wear resistance. Threaded Stem M8/M10x15mm (2 Brakes + 2 Universal Wheels) for Trolley. please do not hesitate to contact us.。All products are taken in kind and manually measured. Due to the shooting angle, strong load.。Includes:4 x casters(2 brake & 2 without brake)。Advantages of casters:。360 degree free rotation。Smooth movement, coffee tables, bookshelves, Workbench, trolleys and hospitals. Suitable for footstools. strong and durable. 。 3.Convenient and Flexible: Built-in low-noise double bearings, under-bed storage, please be patient and wait for the surprise. If you have any questions.