Model Number: for 5D Mark II III IV Configured For: DSLR Cameras Feature 1: NATO Rail Feature 2: Arca Style QR Plate Feature 3: Cold Shoe Feature 4: 1/4 inch Screw Hole Feature 5: 3/8 inch Screw Hole Feature 6: DSLR Video Feature 7: Camera Rig Feature 8: Camera Cage Feature 9: for 5D Mark II III IV Camera Video Rig for for 5D Mark II III IV 5Ds Built-in Arca QR plate,can be connected to tripod. There is a NATO Rail on the top of this cage, That can be installed a top handle or magic arm bracket. There are a lot of 1/4 inch screw holes and 3/8 inch screw holes on the top, bottom, left side and right side,very easy to expand other camera accessories. There is Cold Shoe mount on the top, easy to install Monitor or microphone and other camera rig. Product Weight: About 220g colour:black Material:Aluminum alloy size:17.5X11.5X8.5CM Package Contents: 1 x Camera Cage Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. Configured For: DSLR Cameras Feature 1: Rail Model Number: for 5D Mark II III IV Feature 2: Arca Style QR Plate Feature 3: Cold Shoe