Features: 1.360 Degree Swivel, Convenient to transform the furniture to any directions that you want. 2.Without any noise when moving,our soft and non-skid wheels won't leave marks on flooring. 3.Great for coffee table,bar cart,planter,sofa,heavy table,workbench,file cabinet and DIY projects. Specifications: 1.Material: PU wheel,Steel Top Plate 2.Wheel diameter: 50mm /2 inch 3.Top Plate Size: 40mm × 46mm/1.58in×1.81in 4.Single wheel loadable weight: 27KG 5.Mounting Height:64mm 6.hole diameter：5mm/0.19inch package included: 4×swivel casters with brake .