【Load Capacity】28 lbs each wheel. Total 110 lbs for 4 wheels. Wheel Size: Total height 24mm (1 inch) , mounting plate diamater 44mm (1-3/4 inch) , mounting hole diameter 4mm, distance between diagonal holes 36mm. Package Includes: Mini wheels x 4, adhesive pads x 4, screws x 16. 【Low Profile & 360 Degree Rotation & No Rust】 Swivel Wheels loaded with 201 STAINLESS STEEL BALLS which won't get rust, suitable for both indoor and outdoor usage. Low profile casters won't add too much height to furniture and yet can support a good amount of weight. Larger steel ball in ABS bracket rolls more smoothly compared with other small balls. 【Quick & Easy Installation】Install PlusRoc swivel wheels on the feet/legs of home furniture such as coffee table, shelves,cabinets,dressers,plant stands with included adhesive pads or screws. Make moving furniture quick and easy. 【Wide Applications】Not only for furniture but also for storage containers, underbed storage drawers, tool box, air purifier, standing/tower fans, mop buckets, planters, plant pots …, 【Tips】1.These caster rollers only work on smooth and hard surfaces, may leave tracks on wood surfaces.2.We suggest you use screws to install casters wheels for heavy objects. Plusroc owns this wheel design with pending patent.