Self Retaining Key Changer

thingiverse

Self Retaining Key Changer. This is a device that attaches to your key ring, making it easy to add or remove keys without the hassle of using a staple puller or damaging your fingernails. It's simple, inexpensive, and works perfectly. The key changer is printed with precision using a Cube3 3D printer, which takes only 8 minutes to produce a product that is between 0.016" and 0.031" thick, depending on the material used.