Product features ? 360 DEGREE ROTATION: 360 degree smooth rotation, Easily move to any place you wanted. ? HEAVY DUTY: With 240 Kg load capacity, suitable for almost all workbenches and furniture. ? WEAR-RESISTANT: Double wheels for load distribution and ease of moving. ? SPECIAL DESIGN: Unique designed with heavy duty breaks, locks both direction and wheels. ? WIDE RANGE OF USES: Commonly used for projects and movable furniture including dressers, crates, chairs, under bed storage, shoe bins, toy bins, cabinets, bookshelves, easel, plant stands, footstools, industrial applications, home, schools, shops, garage, appliance trolleys and hospitals, Perfect casters for small equipment and small space furniture including ottoman, coffee table, plant stands, bookshelves, shoe bins, toy bins, shopping carts, workbench, under bed storage etc. Package Contents: ? Set of 4 Double Ball Bearing Swivel Casters with Brakes.