Includes small, medium, large and extra large boxes. Tapered design allows for greater stability and ease in jumping. Easy stacking for storage. Rubber stoppers on the bottom screwed into place for optimum safety and traction to keep boxes from sliding. Black and red color. Made in Taiwan. Small: 24 in. L x 24 in. W x 12 in. H. Medium: 24 in. L x 24 in. W x 18 in. H. Large: 24 in. L x 24 in. W x 24 in. H. Extra large: 24 in. L x 24 in. L x 31 in. H. Strong, sturdy ploy boxes for plyometric and explosive training essential for most sports. Excellent tool for plyometric drills, lateral jumps and forward jumps. Develops overall explosiveness needed to develop proficiency in most sports.