3-in-1 Foam Plyo Box Set: Black 16", 20", and 24" plyometric jump box set for jump training. The perfect addition to your HIIT training program! Durable Foam Box for Jump Training: Heavy-duty foam makes the Lifeline plyo box great for plyometric exercises. Durability and longevity make this a great addition to your home gym! Versatile Exercise Equipment: Multi-functional box allows for graduated workouts. BENEFITS & FEATURES: Durable Foam Box for Jump Training: Heavy-duty foam makes the Lifeline plyo box great for plyometric exercises. Durability and longevity make this a great addition to your home gym Versatile Exercise Equipment: Multi-functional box allows for graduated workouts. Box provides 20 inch, 24 inch, and 30 inch jump surfaces simply by rotating the box Safe Plyo Box Set: this foam plyometric jump box set is designed to reduce the risk of injury and provide a safe workout experience for fitness enthusiasts Compact Home Gym Equipment: This box set can be easily stored and used in any home gym or workout space for a complete plyometric and jump training experience