Backpack Strings the linear gripper has two

the linear gripper has two micro switches which trigger the pulling mechanism as soon as the string is gripped

Professional hybrid tennis clamps

Easily adjustable for an optimal fit

The special plush feel and durability is achieved by a 3 layer construction with an open pore surface

String straightener

Backpack Strings the linear gripper has twoTENX Pro Tour classic backpack comfortably holds 2 racquets and is water resistant. The middle compartment provides a protective sleeve for laptops or tablets and a large front pocket is easily accessible to accommodate shoes or clothing. The popular thermoguard side pocket keeps liquids and snacks cool. The other side pocket is designed for personal effects and has a useful internal clip to help secure items such as keys.