You just need to add 3 carrier ball :) The "bowling rotating ball cup" is a convenient accessory for bowlers. It consists of a rotating platform on which bowling balls can be placed. This platform can be easily turned by hand, allowing players to inspect each ball effectively.

With this rotation, players can examine each ball from various angles to assess its weight, surface, and potential reaction on the lane. This enables them to select the perfect ball for each throw, depending on the playing conditions and their personal preferences.

Moreover, the "bowling rotating ball cup" can also serve as a storage rack for bowling balls when players are not actively playing. This helps maintain an organized playing space and facilitates easy access to the balls during practice sessions or competitions. Additionally, this rotating platform can be used to clean the balls between games, ensuring optimal performance with each throw.