THROOM - Bowling Pin Target, KnockDown SeriesThe THROOM KNOCKDOWN Bowling Pin Reactive Target and the Pivot Base it mounts on are each sold separately. When mounted on the Pivot Base and hit, this KNOCKDOWN Bowling Pin THROOM Target reacts and falls over backwards. It stays down until you reset it manually or by pulling on a string. Bullets pass through the KNOCKDOWN Bowling Pin target and the Pivot Base because they are both made of SHOOT THROO, our tough, flexible, Self Healing polymer. To