Jumper Box Four-to-One: Progressive Kids" Jump Training System
Premium multi-layer EVA foam construction ensures shock absorption and durability for high-impact landings. Interlocking design allows customizable height adjustments (4 gradual levels) to match skill progression. Non-slip rubberized base provides stability during explosive jumps. Ideal for developing vertical leap, coordination, and leg strength in young athletes. Used in home gyms, school PE programs, and youth sports training. Combines four standalone jump boxes into one space-saving unit with stackable storage. Wholesale bulk pricing available – lowest global rates for schools, clubs, and resellers. Ships flat-packed for easy logistics. ASTM safety-certified child fitness equipment.