The Finest Quality Hi-Impact Yellow Birch of the highest bat standards and from second growth forests being regenerated each year. The wood bat with the Best Impact Performance and the Longest Durability. In Drop 5 Models for Maximum Bat Speed. Every billet is sorted and graded on structural elements then accurately weighed to ensure excellent model consistency. The Birch Crossover is strengthened with fiberglass biaxial sleeving applied with Special Rock Resin Epoxy which was designed by the President of KR3 with over 45 years of experience in making baseball bats and Produced Only for KR3. This bat allows for more Freedom to Hit Outside the Contact Area and almost eliminates breakage.