Over sized Vape tanks there are 3 different sizes I made these for SMOK Baby Beast, Prince and AEGIS Cerberus but will work for many other since they are pretty common sizes, the size is in the description of each... Example D24.5 is 24.5mm inside diameter of the top and bottom opening and H20 is 20mm height - D= inside Diameter H= Height. I use and recommend Transparent PTEG it is resistant to most chemicals and I have not had any issues with my juice (do your own research on vape juice and plastic tanks!) Be sure to lightly sand with minimum of 400G sand paper and wash very well with soap and hot water before use, you will have to sand the top and bottom opening so it fits your vape best I made them to be slightly smaller on purpose to make sure it a tight fit, also if you notice one side is tapered on the inside for easier printing. My printer settings are from Simplify 3D and are pictured above when correct it is very strong and pretty transparent more than enough to see the fluid level. I have found that these tanks are a lot stronger than glass tanks and have been using them for a couple years now and are pretty resilient but can still crack on a bad fall. Good luck and happy Printing.