Extra strong Tubes specially designed for the XT Hammer Platform dart slinger heads from SimpleShot. The tubes are attached with a ball, which are pressed into the tubes and hold them securely to the fork. The pull weight can be changed by the length, the shorter the tubes are attached the higher the pull weight and correspondingly stronger the arrow is accelerated. The piece of string is equipped with a D-loop known from archery, on which there is a small piece of leather with which the tubes can be tensioned. The leather piece can be removed and a release (mechanical release aid) from archery can then be used for tensioning. Specifications Color: black Length: 23cm (one tube piece) Length: 5cm (piece of tendon) Scope of delivery 1x tube for slingshot arrow 2x balls for mounting