Battery boxes offer a more durable and secure strap-down system for your vessel&';s battery, than just bungees, or tie-downs. Not only do they completely enclose the battery to protect from weather, debris, and possible "feet" to walk it away, but it offers you peace of mind. With a large height capacity, total acid resistance, vents, and even minimum and maximum temperature tolerance testing, you get the perfect little home for your battery when it rest safe and sound. Meets ABYC standard E-10 and U.S. Coast Guard Specifications Number 183.420 OEM-installed battery hold-down system Polypropylene construction for total acidresistance Hold-down straps resist 350 lbs. of force, nearly four times the USCGrequirement Drop tested in temperatures ranging from -20AdegF to +120AdegF Mounting hardware included Vented Black For Series 27 batteries 10-1/2" maximum height 4 cable openings, enlarged to .55"-diameter Larger handles with rolled edges Instructions molded inside cover Battery Series: 27/27F/27M Inside Dimensions: 13-7/8" x 7-1/4" x 10-1/2" Outer Dimensions: 16-7/8" x 9-5/8" x 10-7/8" Strap Length: 40"