Meet ABYC standard E-10 and U.S. Coast Guard Specification Number 183.420 as an OEM-installed battery hold-down system. Polypropylene construction for total acid resistance. Hold-down straps resist 350 lbs. of force, nearly four times the USCG requirement. Drop tested in temperatures ranging from -20F to +120F. Interior Dimensions: 15-7/16 x 7-1/8 x 7-1/8 x 9-3/4. Strap Length: 38. Mounting hardware included.