SECURE HOLD-DOWN – Frame top design keeps a Group 24 battery locked in place for rough water and trailering, helping prevent shifting and cable strain. FAST ADJUSTMENT – Easy-adjust knobs let you set battery height quickly for a tight, consistent clamp without fighting straps or loose hardware. CORROSION RESISTANT – Stainless steel rods help resist corrosion in marine environments, with recessed fasteners for a cleaner, snag-resistant installation. HEAVY-DUTY BASE – Thick base supports heavier marine batteries and helps distribute load across the mounting surface for long-term stability. GROUP 24 FITMENT – 24 Series sizing: OD 12-7/8 in L x 7-1/2 in W; ID 10-3/8 in L x 6-3/4 in W; battery height range 6-1/2 in to 8 in.