attwood Corporation Battery Tray with 29/31 Series Strap 29/31 battery series 12-7/8 inches L x 7 inches w inside Dimensions Batteries up to 10-1/2 inches in height Molded base mounts with four #10 panhead screws Heavy duty injection molded hi-strength plastic Non-corrosive stainless steel hardware Fits F29/31 series batteries