MIZUNO BAMBOO ELITE FASTPITCH WEIGHTED TRAINING BATA reinforced, weighted bamboo cage bat made specifically for fastpitch players with a 2 1 4 barrel diameter that allows players to train with the same barrel size and shape as they use in games. 120 Day Warranty: Warranted from defects in materials and workmanship for a period of 120 days from the date of purchase. Glass Fiber Reinforced Taper and Handle: Glass fiber wrap added to the handle and taper to increase the strength and durability of the