Two styles - Regular style weighs 16 pounds, heavy duty style weights 60 pounds Three in one - simply rotate the box to get 20-inch, 24-inch and 30-inchNo injuries - durable foam material so you don’t have to worry about getting injured Anti-slip - the surface is a slip-free, meaning you can have stability with every single set of jumps All genuine Balance From products are covered by a 100% Balance From satisfaction support and 2-year Balance From Support.