Baseball pitching practice apparatus

A portable sports training apparatus for defining a strike zone comprising in combination:

• a) a singular one-piece rectangular stabilizing support base;
• b) said base being sectionalized by color into a middle and ends;
• c) the middle of said base, being seventeen inches in length, eight-and-a-half inches either way of center, and colored white;
• d) the ends of said base being of an arbitrary color other than whim;
• e) said base having end apertures to accommodate anchors for additional stability;
• f) said base having a textured rubberized bottom for additional stability and support on surfaces nonconducive to anchors;
• g) said base being of a solid composition with sufficient weight to support a lightweight "strike zone" frame;
• h) said base being optionally hollow for use with ballast;
• i) said base having a plurality of centrally coordinated apertures to accommodate a pair of spaced vertically extending parallel frame members;
• j) two vertically extending parallel upright members;
• k) said vertical upright members being horizontally movable to selected centrally located apertures along the length of the supporting base to enable an adjustment of the vertical, or width, area of said strike zone;
• l) said vertical frame members each separated into two halves joined in the middle by a union thereby making one length;
• m) upper and lower horizontally extending frame members coupled to the upper and lower ends of said vertical frame members respectively which together frame in space a "strike zone";
• n) said horizontal frame members are affixed to said vertical frame members by means of a coupling collar;
• o) said coupling collar comprised in combination of a rear vertical member with a forward horizontal member in which said horizontal member has a central aperture;
• p) said coupling collar rear vertical member used to affix said vertical frame member and said coupling collar forward horizontal member used to affix said horizontal frame member;
• q) said horizontal frame members have uniform identically spaced apertures corresponding in relative position along their length to the spaced central apertures of the base, for securing said horizontal frame members to said horizontal coupling collar members by means of a stabilizing pin and to fix and define the width between said vertical members thereby stabilizing the position of said vertical members;
• r) said horizontal frame members are vertically movable to selected positions along the length of said vertical frame members to enable adjustment of the horizontal area of the zone.