Description: 【Precision Aiming Practice】: Enhance your billiards skills with this Billiards Aiming Practice Tool, specifically designed for helping your aim by aligning the direction towards the target ball's pocket point 【Proper Fit for Standard Balls】: Designed to accommodate balls with a diameter of 5.7 cm/2.24 inch, ensuring compatibility with standard sized billiard balls for optimal performance during practice sessions 【Easy to Use】: Simply align the Pool Cue Aiming Helper with your target ball and strike with the cue ball to improve accuracy, allowing players of all levels to refine their effortlessly 【Muscle Memory Development】: Through repeated practice, this billiards training tool helps build muscle memory, enabling more consistent and accurate shots during actual gameplay 【Premium Material】: Made from quality plastic material, this snooker Training Props is built to withstand regular use while maintaining its precision and effectiveness over time Specification: Material: Plastic Size Chart: Suitable for balls with a diameter of 5.7 cm/2.24 inch Package Includes: 1 Billiards Stroke Training Tool  Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.