automatically or selectively on disengagement by the user application_number US 201514966599 A description hereinafter this specification will describe the ball sport training aid according to the preferred embodiments it is to be understood that limiting the description to the preferred embodiments is merely to facilitate discussion of the present invention and it is envisioned without departing from the scope of the appended claims referring to fig1 a ball sport training aid 100 is illustrated the training aid 100 includes a base 110 and a support 120 which includes a central support 121 and an overhang 122 a tether assembly 130 includes a tether 131 that attaches a ball 132 to the overhang 122 the ball 132 is disposed at a height generally predicated by the height of a user and the ball skill to be practiced the base 110 which is better illustrated in fig3 at least in this embodiment includes wheels 111 and anchors 112 for securing the base 110 to the ground or for receiving weights not shown that likewise maintain the training aid 100 in position the central support 121 extends from the base 110 and is generally secured to the base 110 the support includes two vertically aligned portions 123 and 124 which are movable relative to each other via a screw mechanism 125 disposed between the vertically aligned portions 123 124 as mentioned above height adjustability may equally be provided by another telescopic arrangement or pivotal mounting of the overhang 122 relative to the central support 121 if a telescopic arrangement if employed the vertically aligned portions 123 124 may include cooperating elongate locaters that prevent rotation of the vertically.