1. Compatible with Canon EOS 5D Mark IV Digital SLR Camera. 2. Vertical shooting more comfortable. 3. Same hold feeling as original grip. 4. Ergonomics design, operating comfortably. 5. Engineering plastic body and passed the drop test. 6. PU anti-scratch surface dealing. 7. Aperture value / Exposure compensation button, AF point selector / Magnify button, AE lock / FE lock / Index / Reduce button.