I designed this clip to hold together the generic brand of epi-pens that my wife was recently prescribed. The name brand she had before came with a clip to hold two epi-pens together in case the first were to fail to administer the life saving medicine - she has a severe peanut and tree nut allergy. I thought it was odd that the generic brand did not contain this clip; she still carries them both at all times. This clip I designed was to help minimize clunkiness. Hope this helps you as it has helped me!

I printed this with PETG so it had some more flexibility than regular PLA. My settings were 100% rectilinear infill and four perimeter walls so i would trust it not to break.