New Other Louisville Slugger Catalyst X1 FP81C 31 21 Fastpitch Softball Bat Black Multi The specialty engineered sticky sheets 340471 33 23 Used The specialty engineered sticky sheets easily removes dirt and dust from shoes simply by walking on and off The Mizuno Prospect Wheel Bag is designed with all the essential features for future major leaguers Louisville Slugger TPS Catalyst is an internally designed and manufactured composite fastpitch softball bat The new TPS Catalyst features multiple layers of aerospace grade graphite and S glass fibers which are embedded in a specially designed toughened epoxy resin or more specifically the X 1 Composite Design