1、Plastic Material: Tennis cross string saver is made of durable plastic, which is light and durable. Strings will not be rub against with each other. 2、Easy To Use: Reduces string movement by locking strings in place. Applicator tool makes it easy so that you can insert the cross piece with one hand. 3、Function: Tennis cross string saver can extend the life of your strings. Tennis cross imparts more spin when ball is struck. 4、Portable: Convenient to take it with you. Increased sweet pot and roughness for better control and ball spin. Prevent rubbing and lock them in place. 5、Widely Used: Cross replacement string saver is applicable for badminton racket, tennis racket, squash racket, etc. 1 Box x Tennis Cross String Saver Item Type: Tennis Cross String SaverMaterial: PlasticWeight: Approx. 19g / 0.7ozApplicable: Badminton Racket, Tennis Racket, Squash Racket, Etc