Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:4937354. This tool sits on top of the handgun and allows you to rack the handgun by pushing the gun against a wall or table. This device is meant to help people with weaker grip strength such as the elderly or women. Similar devices sell under the brand name of "Handi-Racker" for $25 on amazon. You can watch a tutorial of a similar device here: https://www.youtube.com/watch?v=XG9TGdSEYPc You can read about a similar devices here: https://www.shootingillustrated.com/articles/2020/5/4/field-review-handi-racker-slide-assist IMPORTANT: This particular design is sized to fit a compact pistol (Specifically, the Ruger EC9s). If you have a full sized pistol you may need to scale the design up slightly.