SmallRig SR3065D (3065D) Lightweight Camera Cage for Sony Alpha 7S III SmallRig Lightweight Camera Cage for Sony Alpha 7S III 3065D is designed to provide a lighter solution for expanding accessories and protecting the body. The cage locks the camera firmly via one1/4-20 screw on the bottom and one M2.5 screw on the side. The cage features multiple standard mounting points and gives you full access to all the ports bottoms and the battery door of the camera. In addition to multiple 1/4-20 3/8-16 threaded holes and shoulder strap holes the cage also comes with standard NATO rails and cold shoe mounts. You can mount accessories on the cage-like SmallRig Monitor Mount 2904 microphones SmallRig Side Handle2187and2093 etc. The cage is made of Magnesium-Aluminium Alloy material which reduces 40% weight than a traditional cage. Moreover there is a magnetic screwdriver on the bottom of the cage for your assembly.