This is a hook designed to hang your string lights around your gazebo. Dimensions were made to fit my Landon and Co. steel frame gazebo from Rona. If you would like a particular size leave a comment and I will adjust and add a print profile for you. This hooks fit the string lights from Costco that a lot of people seem to use (roughly 8mm cord diameter). I recommend you print in PETG for best durability outdoors although PLA would likely be fine as well.