This model is designed to be printed with PLA or PLA+. Used with a standard GoPro case, wit can be mounted to a tripod with a 4-20 screw. The GoPro Case can be mounted with or without arm. The bottom of the tripod stand has an octo opening for a standard 4-20 nut. The 3D printed nut (included) can be used instead but it has its weaknesses. The nut has to be glued to the opening with an epoxy glue or similar. I would recommend using standard hardware if used in the environment where camera would shake a lot.