Demarini CF4 Pitch Black Plus Composite Baseball Bat Pitch Black PLUS Composite-New Pitch Black Plus Composite is a unique blend of carbon combined Silver Trace-Silver bonding agent acts like rebar to reinforce the structure of the carbon weave The Demarini Pitch Black Processing reinforced with Silver Trace provides the strongest composite and most powerful bat Pitch Black Plus Handle-tighestest and strongest composite weave combined with Silver Trace bonding agent Stronger composite allows for 11% longer barrel providing a bigger sweet spot over a larger hitting area