YakAttack CellBlok Battery Box & SwitchBlade Transducer Arm Combo. Can be attached to YakAttack GearTrac and most otherkayak track systems. Fish finder mount and GearTrac not included. Compatible with the YakAttack/Nocqua 10ah and Dakota Lithium 10ah Battery. Made from premium materials designed for use in harsh marine environments. SwitchBlade overall length is 25.75 In. Covered by the Built for Life Guarantee