This is a bow square for meassuring the brace height of short recurve bows. It goes up to 23cm. Measures in cm and mm. It's very useful if you need one immediately and the shops are closed. Have fun!Print the meassure tool flat and the clicker upright at very slow speed. I made the parts of ABS, so I was able to use Aceton to fit the parts perfectly. You can also use some superglue to join the parts. Important: The round side of the clicker has to be on the string side.