Check the listing for details. New Marucci Echo DMND -10 Fastpitch Softball Bat 1-Piece Composite Wh/Gld. Color: White/Gold, Condition: New. Listed at 179.95 USD. The one-piece construction of the Echo DMND is made from Marucci's MDX Max composite material which utilizes a multi-directional composite weave. This not only gives the barrel an ultra-responsive feel but also helps create a powerful sound on contact. The barrel also features a ring-free design that allows increased flex and a large, forgiving sweet spot. In addition, the Echo DMND -10 will be equipped with a Liquid-Gel Dampening Knob, Marucci's newest anti-vibration technology, which situates a precise amount of clear liquid gel into the knob to dissipate vibrations and sting.The one-piece construction of the Echo DMND is made from Marucci's MDX Max composite material which utilizes a multi-directional composite weave. This not only gives the barrel an ultra-responsive feel but also helps create a powerful sound on contact. The barrel also features a ring-free design that allows increased flex and a large, forgiving sweet spot. In addition, the Echo DMND -10 will be equipped with a Liquid-Gel Dampening Knob, Marucci's newest anti-vibration technology, which situates a precise amount of clear liquid gel into the knob to dissipate vibrations and sting.