Miken tetra core technology optimizes performance by utilizing an inner core tube, increasing compression for unmatched responsiveness Miken sensi-flex maximizes energy transfer from handle to barrel increasing bat head speed through the hitting zone 100 % composite Made in USA Brand: Miken Map: Yes Size: 2 14 in Certification: ASA Frame: Four-Piece Material: Composite Technology: Terra-Core Technology, Sensi-Flex, 100 COMP Series: Freak Warranty: 1 Year Weight: 28 oz Barrel Length: 14 in Year Released: 2017 Weighting: Maxload