Used Mizuno F19 Carbon 33 23 340477 Fastpitch Softball Bat Black Green 19 x 11 x 9.5 The four way stretch fabric combined 17.5:Green White The four way stretch fabric combined with a performance waistband offers a secure sound and feel through the barrel Meets new USA Baseball standard with stamp dirt on end cap and a few smudges Double wall: gives you higher peak performance right out of the wrapper with a larger sweet spot for more power and forgiveness X Zone: creates a massive sweet spot by adjusting composite angles in 10 specific zones across the barrel Anti shock: reduces vibrations felt in the hands for a more comfortable swing Speed helix grip: designed to provide comfort and durability One Piece Construction for less flex and higher performance Approved for: ASA ISA Mizuno F19 CRBN 1