For the year-round track and field athletes, an increasing number of schools are adding the Indoor Weight Throw event to their program. And as with most throwing events, NCAA regulations stipulate that the throwing area be enclosed by a protective barrier. The AAE Portable Indoor Cage is constructed of a 4" sq. aluminum alloy frames and features a heavy-gauge, double-ply nylon netting. Four side handle jacks are attached at the front and rear of the cage. Crank wheels down to raise the cage for moving or storage; crank them up once the cage is in place for event use. May also be used for Indoor Shot event.