●Includes 4 casters (2 casters with brakes& 2 without) and 16 pcs screws. Rotate 360 degrees. The wheel brake ONLY locks the wheel ●Capacity 25LB per wheel, Total 100LB. Bearing: Single ball bearings ●Plate Size: 1.5" (38mm) x 1.3" (33mm). Mounting hole diameter: 0.15(4mm). Screw Size: 4mm (diameter) × 16mm (length) ●1" Diameter TPE Wheels. Super Silent & Sturdy. Soft and non-skid wheels wont leave marks on flooring ●Wide range of uses: Commonly used for small projects and movable furniture including dressers, crates, under bed storage , shoe bins, toy bins, cabinets, bookshelves, easel, etc