360° ROTATION - The top plate equipped with premium steel balls, can rotate 360 degrees swiftly and smoothly with ease, easy to flexibly transform directions. SOLID RUBBER WHEELS- Made of high quality non-marking rubber material, absorbs shock and vibrations, wear-resistant and roll silently, protecting your floors from scratches. DOUBLE LOCK MECHANISM- The locking mechanism can lock both the wheel and the swivel at the same time, which is essential for safety and stability. 1100LBS CAPACITY- Each caster can load capacity up to 1100lbs. Pecfect for flight cases, display equipment,light machinery, cabinets, equipment stands, furniture etc. HEAVY DUTY BRACKET- 5 mm thickened galvanized steel plate body is extremely hard wearing, corrosion and dust resistant, strong and durable for long service life.