This is the airless basketball. It is one of the most difficult things to print due to the intricate design. It takes 70 hours to make. One whole wheel of special and expensive airless basketball filament is used to make this. It also needs its own new buildplate every time you make one. This is by far my favorate thing that I have 3D printed. It bounces like a regular basketball, hase the same wieght and is the same size as a professional basketball. Shooting with it feels great as well. This product will take about 3 weeks to ship, and in total costs about 70 dollars to make. This ball comes with its own stand as well. DO NOT SMASH as this could crack it and it should be used like a normal ball.