Rip-It Drop Ten Air NCAA Fastpitch Softball Bats Features: Model : F1510 Weight Drop : -10 Barrel Diameter : 2 1/4 Sizes : 31/21oz, 32/22oz, 33/23oz, 34/24oz Legal for ASA, USSSA, NSA, ISA, High School, NCAA - Exceptionally balanced design for fast swing speeds and improved bat control. - Single piece composite design featuring R3 composite. - Raised ridge grip to eliminate unwanted vibration. - Rip-It 400 day warranty with unlimited replacements. - Rip-It 30 day Love it or return it. Warranty: Love it or return it. Love your RIP-IT product or let us know. We'll always make it right. RIP-IT is built around the simple idea that you should love your equipment. This core belief is why we provide every player thirty days to make sure the equipment they buy is perfect for them. If you love it, you join the thousands of players who feel the same way. If you do not, simply return it to us for a refund. All of our customers in the United States receive complimentary return shipping on all Love it or return it returns. 400 day warranty Unlimited replacements. All RIP-IT products come with an industry-leading 400 day warranty that includes unlimited returns over the 400 day period. The warranty covers all manufacturer defects and extends to all playing conditions, including low temperatures. Our warranty also features complimentary shipping both ways for customers in the United States.