SPECS: Inside Dimensions with Lid Installed - 11-1/8" x 7-3/4" x10-1/8" Outside Dimensions with Lid Installed - 14" x 9-5/8" x 10-5/8" CONSTRUCTION: Battery boxes meet ABCY 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 pounds of force Battery boxes drop tested in temperatures ranging from -20degF to 120degF Larger handles with rolled edges Instructions molded inside cover