Swing training moves home inside this freestanding batting cage, whose 12 x 10.2 x 7.6 foot semi-circular fiberglass frame needs no poles or ceiling anchors. The 4-ply knotless polyester netting absorbs fast pitches and full-power hits without tearing, and a dedicated pitching machine opening feeds consistent reps. At 17.3 lbs the two-arch structure sets up in the backyard, school gym, or field and packs down just as quickly.