Increase explosive vertical jump power and speed with Champion Sports Set of Five Plyo Boxes. Used in a variety of plyometric drills and speed training. The plyo box acts as a stable landing surface thanks to the slip-resistant rubber-coated pad. Made of welded steel and constructed at a six-degree angle to prevent tipping. This set of five sturdy plyo boxes are a perfect way to improve your jumping skill and speed.Note: This is a non-returnable item.