Summary This is a simple bottle opener without metal, with an added keyring hole, so you can keep it on your keys. Print Settings Printer: 3DStuffmaker Prusa Explorer Rafts: No Supports: No Resolution: .3 Infill: 40% Notes: Lots of infill, to give it more strength. Printed with PLA. Post-Printing Clean out the stringing from the keyring hole How I Designed This Just a remix, modified the original STL in 123D Design.