The BAWMB features a 1/4"-20 slot for camera mounting. It is made of heavy-gauge steel and covered with a black powder-coated finish.Compatibility with all center-mount cameras, such as SMTAV,HuddleCam,Sony,AVIPAS ,etc. Size is L8.95" x W4.25" x H3.74". Package Includes: 1/4"-20 Bolt,5x Device Mounting Screws.