This is a great value set of ProSENDR (Pro Sender Right Handed) + QUICK MASTER Golf Ball Liner P1. Limited Quantity! Once it is gone! Here is the "ProSENDR" for each product description: You can keep your wrist in the same condition as the pros. The back flexion of the right wrist makes it easier to maintain the palm flexion of the left wrist. Prevents excessive back bending on the right wrist and stabilizes the incident angle. The early release is suppressed, and the swing arc will be larger. It can make a wide down (club down farth) to maintain a square face. Since the club falls from the inside side, the impact zone is longer and the ball can be caught tightly. 【QUICK MASTER GOLF BALL LINER】 8 different lines to draw the only circle in the world. The worlds most rare metal material. Durable hinge shaft for durability and secure ball closure Luxurious and perfect for gift and competition The groove width is designed to reflect the voice of golfers used in Japan bespoke products. You can use a familiar pen or write a thick line for easy viewing. This practice equipment is supervised and recommended by Tour Pro Coach Oshi Nato and features the familiar "Quick Master" logo for golf fans. Patented in 7 countries and regions around the world, including the US, Japan, Taiwan, Korea, Australia, UK, China and the world. From development, manufacturing to packaging, all in Taiwan.