Enhance your workout routines with the j/fit Plyo Boxes - Set of 4. These boxes are perfect for plyometric drills, jumps, and explosive training. Each offers a solid steel construction with a durable powder coat finish. They stack easily and feature non-slip rubber pads. Sizes include: 12-inch box - 13x13 top, 14x14 base, 18-inch box - 14x14 top, 18x18 base, 24-inch box - 15x15 top, 21x21 base, 30-inch box - 16x16 top, 23 x 23"" base. About j/fit Located in beautiful Vancouver Washington, j/fit was founded on the statement: If your body feels good, so will your mind. Founder Jody Lernihan and her brother Bob developed the company on the philosophy of providing quality fitness equipment that was affordable, portable, and easy to find. They sell a variety of exercise balls, bands, and lightweight weights that are accessible and easy to transport. Jody personally designs many of the products. Fun instructional videos and a strong online community complete the well-rounded nature of this innovative company. * Steel frame construction * Powder coat finish * Rubber stoppers on bottom * Ideal for plyometric drills, jumps, and explosive training * Stack easily for storage * Set of 4 included * Various sizes included