Single cell box mod

This is my design of unregulated box mod. Parts needed:
- https://www.fasttech.com/products/0/10011690/2013501-diy-spring-loaded-firing-button-for-mechanical-mod
-https://www.fasttech.com/products/0/10011689/3441401-510-connector-w-solder-ring-terminal-for-e
-cheap chinese voltmeter (check dimensions my is 11x23mm)
- 5x5x2mm magnets
- 5mm tact switch for switching woltmeter
Battery holder is also 3d printed you can find it on my profile.