PERFORMANCE TECHNOLOGY: One-Piece Construction: Allows for maximum stiffness, ultimate bat speed, and an ultra-responsive feel X14 Alloy Barrel: A massive alloy barrel designed specifically for elite power hitters Tracer End Cap: Composed of lightweight composite materials to enhance bat speed while maintaining powerful barrel performance ADDITIONAL DETAILS: NOTICE : Baseball/Softball Bats are only eligible for return if they have not been used. Expanded Warranty: DeMarini's BBCOR warranty covers multiple repairs or exchanges throughout the first year following the purchase of any stock bat. Visit: DeMarini Bat Warrenty to learn more