This is a medium sized speedball which is made from Rex leather. The leather is lined with 2 layers of textile materials to give it extra strength. The ball is hand stitched and is made from 6 long panels and one end panel. The ball has a rubber bladder inside which is inflated with a standard football pump to give shape the the ball. This is the wooden platform that the ball attaches to using the ball bearing swivel. The platform is made from 18mm MDF that is Formica laminated on both sides which make it. The ball also comes with a swivel which attaches to the ball and allows the ball to swing.