A laser pointer design that aids communication in boccia sports

A hand-bound laser pointer with a track scale to help athletes and assistants communicate ball heights and angles more easily and accurately for boccia players at the BC-3 level. The laser pointer is attached to the athlete's hand using a wrist strap, allowing the athletic staff to point to the height of the ball and the angle of rotation of the track through hand movements. Traditional athletes and assistants through the language of communication is very test of athletes and assistants of the tacit understanding of the assistant, and easy to exist in the assistant cannot well understand the athletes to express the height and angle of the problem, at the same time there is a long time to communicate with the efficiency of low and other difficulties. The use of laser pointer assisted communication than traditional can be more accurate and efficient.

Materials used: corrugated paper 5 yuan, laser pointer 2 yuan, wrist brace 15 yuan, hemp rope 2 yuan, ball 3 yuan. A total of 27 yuan, which is about 3.9 US dollars.