This tripod uses cheap coolant pipes as flexible legs. "Iphone6tripod.stl" will accept phones sized 65mm - 70mm (iphone 6/6s/7, galaxy s4, htc one, blackberry z10, nexus 4/5). "Iphone5tripod.stl" will accept phones sized 59mm - 64mm (iphone 4/5/5s/se). if you have a case make sure to measure. only tested iphone 6s and 5s. link in youtube video description for cheap coolant pipes ($1 ea.)