CWB Connelly Groove 2017 Venza Wakeboard for Age (9-12), 139cm/Large/X-LargeTrans base for strength and slickness Triax layup for strength Flat bottom design catch free on rails Four fiberglass fins Park rail board The groove wakeboard is bullet proof on rails and wake approved behind the boat. The variable height ABS rail extends into the board for increase strength while the Trans base for durability. Go down to your local cable park and try one this summer.