Dial in your swing before stepping up to the plate this season by warming up with the Varo(R) ARC(R) 12 oz. Bat Training Weight. Engineered to mimic a game-like feel to help develop solid mechanics and strengthen specific muscles, this training weight comfortably fits onto a variety of youth and pro bats to ensure they're protected against rings and scratches. Bolster Your Swing: Advanced Weight Distribution: Disperses weight to the end of the bat to maintain a game-like feel Cushion-Fit Technology: Integrated rubber fins protect the barrel of your bat from suffering rings and scratches Air Diffusion: Helps focus more on natural wind resistance Barrel Feel: Strategic weight distribution encourages an inside path to the ball True-Fit Core&trade: Delivers a secure fit across Youth and Pro bats Additional Details: Weight: 12 oz. Fit Guide: Small - Fits 2 1/4'' barrel bats / Regular - Fits 2 3/4'' and 2-5/8'' barrel bats Recommended for ages 8+ Manufacturer's Warranty: 1 year