Available now are two mini Xbox controller keychains. Each keychain's approximate measurements are available in the photos (i say approximate because the curves and angle of the camera can make it look a little longer or shorter, but not by much). Each measure approximately one inch (1") across and one is a mini replica of the original white Xbox 360 controller and one is a replica of the original black Xbox One controller.
Both keychains were acquired when I worked in the video game industry from 2007–2018. The white Xbox 360 controller keychain was from approximately 2007–2010 and the black Xbox One controller keychain was from approximately 2013–2016. I can't remember the specific dates/times, but I do know they were from that range.
Please view the photos as this is the exact item you will get. Thanks!