BAMshaft ATTACK Stick Wood Bamboo 31" Men Lacrosse Shaft 9.8 oz lightweight hard LENGTH: 31 WEIGHT: 9.8 oz FLEX: +3-inches All shafts are Federation approved for high school and grade school play and meet all NCAA regulations for college lacrosse. The Bamshaft also generates an entirely different feel. The solid bamboo construction stays warm in cold weather and hurts more than titanium when you check with it.