Construction: Provides a safe place for batteries while top surface offers a platform designed for mounting SwitchBlade Transducer Deployment Arm and full line of fish finder mounts to eliminate the need of drilling holes in kayaks and routing wires 2 track mount knobs loosen for quick attachment and removal of depthfinder Light 25% reduced weight at 1.4 lbs. Strong injection molding Large cable wraps provide accommodation of larger wires 10-1/2 in. minimum track size Built for Life Guarantee Interior space: 6.375 in. x 4-1/4 in. x 2.60 in. Exterior dimensions: 10.25 in. x 6.75 in. x 3-1/2 in. YakAttack CellBlok Mount Platform Battery Box