These super strong steel plyo boxes are built to last. The heavy duty taped tubing means that the base is wider than the top ensuring ultimate stability and allowing for easy stacking for storage. Whilst the anti-skid rubber top platform surface ensures user safety and protects against scratches. Features: Super strong fully welded steel tubing frame Tapered design provides a stable jumping platform for users of all sizes Stackable for easy storage Non-skid rubber platform Available as a set of 4 (12\', 18\', 24\', 30\') The Gym Gear Steel Plyo boxes are a great fitness tool ideal for box jumps, push ups, dips, step ups and a multitude of other exercises. SPECIFICATION: Brand GymGear Usage Home Use, Commercial Use Condition Brand New Warranty 2 years warranty