Worth 220 SB22BU USSSA Balanced Composite Slow Pitch Bat 220 advantage - tuned to maximize performance and durability with the Use of a classic M extreme ball Tri-seamless technology - triple wall, one-piece design, utilizing seamless walls for unmatched performance and durability 100 percent composite - barrel is made solely from composite materials - made in the USA Approved by USSSA, NSA, ISA and all other associations using 1.20 bpf with abi standard