The CellBlok is a track-mounted battery box, and its top surface doubles as a mounting platform for your fish finder display and transducer deployment arm. No more drilling holes or routing wires through your kayak. Loosen the two track mount knobs and the CellBlok comes off in seconds, so you can move it between kayaks.The YakAttack SwitchBlade Transducer Deployment Arm and YakAttack's fish finder mounts pair with the CellBlok for a complete depthfinder mounting solution. This version uses injection molded construction, a 25% weight reduction over the original CellBlok, with larger cable wraps to fit today's bigger fish finder wires.Specifications Exterior Dimensions: 10.25" x 6.75" x 3.50" Interior Space: 6.375" long x 4.25" wide x 2.60" tall Weight: 1.4 lbs Track Requirement: Minimum 10.5" of GearTrac Material: Made in the USA from materials built for harsh marine environments Compatibility: YakAttack GearTrac and most other kayak track systems Includes: CellBlok box and hardware to attach to GearTrac only Not Included: GearTrac, fish finder mount, transducer arm, display, and battery Key Features Track mounted battery box doubles as a display and transducer arm platform Loosens off the track in seconds for quick removal or swapping between kayaks No drilling or wire routing required Injection molded construction, 25% lighter than the original CellBlok Larger cable wraps fit today's bigger fish finder wires Fits popular batteries like the YakAttack/Nocqua 10Ah, Dakota Lithium 10Ah, and Amped Outdoors 12Ah Assembly required Backed by YakAttack's Built for Life Guarantee