for NOCO HM300 Black Battery Box with Snap On Lid for Group 24 Batteries Trailer Marine Specs: Internal dimensions: 10-1/2" L x 7-3/16" W x 9-5/8" H,External dimensions: 14" L x 10" W x 10-11/16" H,Strap 42" Long This kit contains: 1x Battery Box 1x Snap On Lid 1x Strap for Securing Features:Hardened plastic resistant to battery acid, UV rays, gas, and impacts,Handles for easy lifting and moving,Multi use for trailers, campers, boats, generators, almost anything with a battery,Made for Group 24 batteries 2 Vents on the lid for breathing We stand behind everything that we sell and will do everything possible to assure you are satisfied