It is custom designed and form-fitting and does not block buttons and ports of the camera.
SMALLRIG 2251 Cage for Canon EOS R
It mounts to the camera's tripod socket with a 1/4"-20 screw, with anti-twist design and rubber cushion on the base plate to prevent twisting.
It comes with multiple 1/4"-20 and 3/8"-16 threaded holes allowing mount of accessories.
For example you can mount SmallRig Top Handle 1984 and SmallRig Wooden Side Handle 2093 for hand-held shooting.
Mount SmallRig Ball Head Magic Arm 2070 or 2212 to attach monitors.
Attach SmallRig Cable Clamp 1822 to protect the HDMI cable and port.
ARRI locating holes on the top and both sides are perfect for SmallRig ARRI Locating Handle 2165 and SmallRig Ball Head Magic Arm 2115.
The cage features built-in Arca Swiss QR plate on the bottom which is super convenient to mount on SmallRig 15mm LWS System 2145 or SmallRig Arca Swiss Base 2143.
1 x Canon R cage