2013 Worth Mutant 454 Slow Pitch Softball Bat USSSA. 14 inch barrel. Center-Load swing weight. Mutant Two-piece construction of the 100% composite bat designed to provide more flex than one piece bats. Worths Made in USA patented 454 technology extends the sweet spot two inches in BOTH directions, giving the player the largest sweet spot in the industry. The Center-Load is typically preferred by players looking for more than a balanced bat but dont want the full end load. Used by hitters seeking control and consistency with the slight feel of an end loaded bat. 100% Composite barrel is made solely from composite materials. Hybrid Grip Provides ultra soft touch and maximum sting and vibration reduction to power through the ball. 1.20 BPF W/ ABI Multi-layer composite core designed to provide exceptional rebound and maximum durability. ASSOCIATIONS: USSSA, NSA, ISA & ISF Approved. "This bat has the USSSA 2013 Stamp" NOT ASA APPROVED.