This is a part for attaching a rear monitor using the screw holes of the assist grip above the door. The fourth photo is an actual installation image (the monitor is not included in the listing). The shaft of this mounting device is sandwiched and fixed to the mounting part on the back of the monitor. It has been used, so there are scratches, but there are no problems with its use, and I think you can use it. It is ideal for those who don't think they need a flip-down monitor. There are no instructions, but it can be installed by someone who is somewhat capable of DIY. There may be missing parts for installation, but please prepare them yourself. It seems that it is already discontinued and there are no similar mounting devices, so I would like to sell it to someone who needs it. It has not been cleaned in detail, so please refrain from bidding if you are concerned about the condition. Since it is a used item, please understand that it is non-returnable and non-refundable (NCNR).