About this 3D model

Mine has broken so I designed a new one, it fits very well. The one in the photo is printed in PLA but the final one is made of resin due to the temperature. The v1 does not have an inner nerve, and the v2 does. Also, I have uploaded the .step file Mine broke, so I designed a new one. It fits quite well. The one in the photo is printed in PLA, but the final one is made of resin due to temperature concerns. I recommend ASA for FDM printing. Version 1 does not have an inner nerve, and version 2 does. I have also uploaded the .step file.