Low poly heart model suitable for 3D printing. Can be used in jewelry and as a souvenir. Model size can be changed in any limits. in addition to the STL format, there are four more popular formats for use for other purposes not related to 3D printing.
There is also a PDF file with assembly instructions, which you can print on heavy paper and assemble according to step-by-step instructions. The size of the paper heart when printed on A4 paper size will be 250mm * 286mm * 139mm. If you have any questions or suggestions, be sure to contact me. Good luck!