Champion DuraSeal Wobble Targets offer a different kind of target practice on the range. The wobble design utilizes a weighted-round bottom that provides an easy-to-see shaking reaction when struck by a bullet. The four-sided design provides a 3-D target to aim at, no matter how it wobbles and bobbles after each hit. Each target is made of DuraSeal material, made in the USA, and is constructed of a non-metal, self-healing material that handles hundreds of rounds, yet still keeps its shape to provide hours of interactive shooting fun. Choose from two different, easy-to-see designs based off your shooting needs. The Bowling Pin Wobble Target handles .17 caliber up to .50 caliber rifles or handguns and the green Wobble target is for use with .22 LR. For best results, set up on a flat, smooth surface.