The Wonder has a 2-piece bat construction and is crafted with a 100% TCT Composite design. TCT stands for Thermo Composite Technology, which is Easton's go-to composite material for great durability and performance. Easton incorporates the FLEX Barrel Compression with the Wonder, giving you a softer barrel out of the wrapper for increased bat performance. This bat also has the ConneXion+, which connects the barrel to the handle and ultimately gives you a more solid & natural feel while increasing power potential.