Best Seller | Stamina X Plyometric Box - Red The four-height adjustable Stamina X plyometric box is perfect for your home gym. With steel construction and a 300-pound weight capacity, this fully assembled, portable piece of equipment helps develop strength, power and explosiveness in any athlete. ... more Stamina X Plyometric Box - Red The four-height adjustable Stamina X plyometric box is perfect for your home gym. With steel construction and a 300-pound weight capacity, this fully assembled, portable piece of equipment helps develop strength, power and explosiveness in any athlete. Bed Bath & Beyond | | $217.99 FREE shipping go to store |