Maximize your efforts at the plate this season as you build strength and condition key muscles with the Varo(R) ARC(R) 12 oz. Softball Bat Training Weight. The only softball training weight to be covered over the bat's sweet spot, the ARC(R) delivers a game-like feel with each swing taken. 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(TM): Delivers a secure fit across Youth and Pro bats Additional Details: Weight: 12 oz. Fit Guide: Fits 2 1/4'' barrel bats only Recommended for ages 8+ Manufacturer's Warranty: 1 year