For the avid bowler, these Turbo Grips Bowling Finger Inserts are a must-have accessory. Specifically designed for the Quad Classic model, these purple 39/64" ball inserts provide excellent grip and support for a smooth release, resulting in better accuracy and higher scores. Made from high-quality materials, they are durable and long-lasting, ensuring a consistent performance for many games to come. Perfect for any bowling enthusiast, these finger inserts are compatible with the Turbo brand and are suitable for both professional and casual use.