Material: BlackBattery: Without 11. [Improve the accuracy of scoring] Auxiliary equipment that can improve the player's rapid impact level; it can enable the player to accurately grasp the spatial relationship between the target bag, the object ball, and the parent light bulb; it can accurately detect the collision between the light bulb and the object ball and Walking and impact positions, thereby improving accuracy. 22. [Eliminate visual errors] The left and right eyes produce two different images that enter the brain and produce errors. It can help you with precise positioning and help practitioners establish correct habits and methods. 33. [Correcting the action of the bar] You cannot observe the nuances of each game ball, but the impact on the ball is different. After connecting the ball to the device, all slight deviations in the swing will be reflected by the device. Allows you to see previously ignored incorrect operations. By practicing leverage, you will never swing again! 44. [Very suitable for beginners] Using auxiliary equipment, you can cover all possible shooting angles and lengths! Even better, the device is also designed to draw a line on the table, so direct play will become a breeze. For starters, this may be a good way to play reasonable games with experienced friends. 55. [Widely applicable] Pool cue auxiliary device suitable for various pool cues, two brackets can be used interchangeably according to the situation, which can help you quickly become a professional, and it is also the best gift for beginners.