Used [mint condition] AXE BAT SPEED TRAINERS POWERED BY DRIVELINE BASEBALL

My son used these three Axe Bats to increase bat speed and exit velo. It also helped him with the barrel control. I also have the original booklet that includes 4 Driveline training programs. BATS INCLUDED: 1 overload, handleload Axe Bat Speed Trainer, 2-5/8” barrel, with red tip (+20% overload/33”/36 oz.) 1 overload, endload Axe Bat Speed Trainer, 2-5/8” barrel, with green tip (+20% overload/33”/36 oz.) 1 underload Axe Bat Speed Trainer, 2-5/8” barrel, with blue tip (-20% underload/33”/24 oz.) TRAINING PROGRAM INCLUDED: 4 Driveline training programs: In-season (12 weeks), Out-of-season (12 weeks), In-season Advanced (12 weeks), Out-of-season Advanced (12 weeks) BAT FEATURES: Patented Axe Handle Engineered Hitting Zone Barrel HyperWhip End Cap Overload: One Piece Alloy Underload: One Piece Composite