Take your fitness to the next level with the Stamina(R) X Adjustable Height Plyo Box, designed to improve speed, power, agility and explosiveness through high-intensity training sessions. Total Body Training Helps improve strength and endurance for noticeably faster speed, more powerful strength, quicker agility and split-second explosiveness Four adjustable height settings for increased levels of intensity Ideal for high-intensity training Quality Construction Heavy-duty steel frame is durable and long-lasting Rubber landing surface for added grip and stability Space-saving design for easy storage and portability Key Specs Dimensions: 27'' L x 18'' W Height adjusts from 12'' to 24'' Additional Details Manufacturer's Warranty: 1 year frame, 90 days parts Includes workout guide