1Applicable Model: The camera quick release baseplate is applicable for A7C2 A7CII A7CR camera, the battery can be replaced more conveniently without removing the battery plate. 2Enhanced Expansion: With 1/4in and 3/8in holes on the bottom that are compatible with most handles, and tripods, allows quick installation and swift switching between horizontal and vertical shooting. 3Convenient Battery Replacement: The base has a slot for the original battery cover, making it easier to replace the battery without disassembling the baseplate. 4Silicone Protective Pad: A silicone protective pad on the base effectively protects the bottom of your camera, boosts friction, and prevents scratches, also contains 2 safety stop screws to prevent the camera from accidentally falling off. 5Aluminium Alloy Material: Made of high strength aluminium alloy material, the anodized frame of this cage is more wear resistant and corrosion resistant, soft with smooth edges.