The LC Fabrication universal mount battery box for Antigravity 4 cell lithium ion batteries is machined in house from 6061 aluminum and given a durable powdercoated finish, right here in the USA! Mounts anywhere you choose using the supplied 1/4-20 flathead screws. Assembled dimensions are approx 4.5L x 1.5W x 3.25 Tall and weighs just about 1LB! Batteries not included.