Pro Ink Dot “Certified” Yellow Birch from Quebec’s Eastern townships and supplied by North Americas best quality Yellow Birch producers to the highest ball bat standards. The wood bat of the future with high shock resistance - 41% above Maple and 28% above Ash. Unique fibre cleavage that gives great resistance to splitting and other shear forces combined with greater strength and stiffness than either Ash or Maple. Double bone rubbed and triple coated finish. Pro Grade – Drop 3. New in 2018, all Hi-Impact Birch bats come with a 30 Day Warranty.