Plyometric Box Soft Foam Fitness Jump Box Plyometric boxes or Jump Boxes are commonly used in fitness training, especially plyometric activities. No matter you are a beginner or an advanced user, plyometric training could be a part of your fitness routine because it is user friendly, and it brings various benefits. With a plyo box, you could perform box jumps and step-ups which could assist you to increase your fitness level, including but not limited to increase your speed and power, contain your body shape, improve endurance, and burn calories.ATTIVO plyometric box is made of non-absorbent vinyl and high-density interior foam. A set of the plyometric box comes with 4 soft blocks with different height. You could use them separately or stack them for different height needs. The large fastening straps are designed to make sure safety and stability when they are stacked. The padded edge protects you from getting hurt in case you catching your feet or shin. Each can be used separately or stack for different height needs. - Each box can be purchased separately. - Firm and durable high-density interior foam. Protects from injury whilst remaining firm enough for all exercises. - Large fastening straps ensure the boxes will not slip when stacked. - The surface is made of non-absorbent vinyl. Moisture-resistant technology makes the mat to be easily wiped and clean.Specifications - Footprint : 90cm x 75cm. - Height for each box: 1# 15cm, 2# 30cm, 3# 45cm, 4# 60cm.