More details on the Canon EG-E1 Extension Grip
Overview: The EG-E1 Extension Grip is an accessory for the Canon EOS RP mirrorless digital camera. The extension grip provides additional support and comfort, making the EOS RP camera easier to hold. The grip has an access panel on the bottom for changing the camera batteries or inserting an SD card.
Installation: To install the EG-E1 Extension Grip, you must first remove the camera's card slot/battery compartment cover. (Be sure not to lose the cover while it's removed.) The Extension Grip attaches to the EOS RP camera body via its tripod thread. The grip has its own 1/4"-20 standard tripod thread so you can still mount the camera to a tripod. When attached, the EG-E1 adds approximately 5/8" to the overall height of the camera.