For Use With 27/ 27M Series Battery; Low-Profile; Non Corrosive; Black; Plastic; 12-5/8 Inch Length x 6-3/4 Inch Width x 8-1/4 Inch Height Inside Dimensions; ABYC Standard E-10 And U.S. Coast Guard Approved; With Adjustable Height Crossbar And Two Retaining Bolts; Aftermarket Packaging