Helix is a tennis game
Helix is a kind of combination between badminton and beachball. The idea arises during the study in China: Here came the idea that badminton and table tennis are difficult to play outside when it is blowing, beachball is too difficult for children and the garden is usually too small for tennis or squash. Thanks to its innovative design, the Helix has a stable flight. Due to a renewed weight distribution and a stable rotation system, the game can be played up to and including wind power 4.
https://www.youtube.com/watch?v=spnEbeUqC6g