Made of 3mm sheet steel and fully TIG welded. Equiped with Speedholes to save weight. The whole box weighs less than a kilo. With the supplied 6mm strip of bare steel and two stainless steel screws you can mount the not included battery. The internal dimensions are 155mm x 95mm. The internal depth is 130mm. This Batterybox is great for Harley Davidson Part No. 65948-00.