Enhance the functionality of your bath seat or trolley with these versatile caster wheels. The universal type makes them suitable for a wide range of applications, from furniture to heaters, providing a stable and reliable replacement for your old or damaged wheels.Features-Color:Black-Material:PP-Size:4.00X3.00X0.80cm1.57X1.18X0.31inThread diameter: 8mm-Multipurpose: fits electric heaters, furniture, bath seats, and trolleys, offering universal replacement solution-Quick installation: easily disassemble and install to give your heater smooth mobility-Floor protection: ensuring no scratches or damage to your floors during use-Efficient replacement: ideal for replacing casters, enhancing the mobility of your oil heater-8 mm requirement: the fixing hole on the plate must be at 8 mm for secure attachmentPackage list: 4 x casters4 x screw caps