Easy to use - Reduces string movement by locking strings in place. The applicator tool makes it easy to insert the Crosses part with one hand, speeding up restringing. Portable and convenient - Compact design that you can take to the court or travel with, for on-the-go use. Material and durability - Made of silicone, lightweight and durable for repeated use. Performance and protection - Extends the life of your strings. The Tennis Crosses string saver helps impart more spin when the ball is struck. Use scenarios - At-home restringing sessions: quick setup and easier installation of the Crosses part. - On-court practice: maintains string position during play and enhances ball control. - Travel or tournament days: compact tool for reliable string care and extended string life. Tennis Crosses string saver summary - Function: locks strings to reduce movement; one-handed insertion with the applicator tool. - Compatibility: designed for use with Tennis Crosses string saver components. - Size: compact and portable for easy carrying. - Material: silicone, lightweight and enduring. - Performance: extends string life and increases spin upon impact.