Soccer ball "TEKUDAMA (Tekudama)" specifically for improving technique. Size 2 ball (weight equivalent to size 4 ball) Stitched, synthetic leather. Anti-sand valve. No air leaks. Number of uses: Used indoors a few times. The feel of kicking the ball, its rebound, and weight are the same as a regular size 4 ball, but by making it smaller to a size 2 ball using a special manufacturing method, it increases the difficulty of practice and provides more stimulation to the brain and nervous system. It looks like a regular ball, but due to the uniquely developed balance setting, it can bounce normally, or the rotation changes depending on the surface the ball hits, and it bounces irregularly. We have adopted an original design with high visibility that makes it easy to see the ball's rotation. It makes it easier to recognize the ball and allows you to concentrate more on training. Dribbling will dramatically improve! Umbro Athleta