Stainless steel metal ball can be 360°free swivel,spin your coffee machine, craft boxes, laundry bucket, flower pot bottom, nightstand, garbage cans, storage containers and more easily, you can push a heavy box with a gentle push,no matter forward and backward, left and right. and the silent wheels are stable and quiet, will not scratch the ground, which is not easy to shake when pushing,with a maximum load of 8 kg; Loading over 8 kg may prevent the wheels from turning,then you can use them, Note: Sliding on the wood surface may leave tracks Easy to install， you need simply peel the film on the back, then firmly press onto the smooth surface, and please wait for 24 hours that will be good when using. Small holes are left at the bottom, which can be used with nails 360°free swivel, the mini paste pulley can slide to any angle, not limited, completely silent when applied, very suitable for makeup storage, kitchen, table top, bedroom, bathroom, living room and flower shelf storage We reply all emails in 24 hours and provide question-asked refund if you received damaged item or when other product & package delivery issues happened !