One of the most important precondition for successful shooting and good results is the exact definition of the spine value. It doesn’t matter if you talk about the high-performance sector of the technical archers, the traditional tournament scene or bow hunting; without the adequate arrow important scores or the longed for prey are lost. This digital spine tester is the result of many years of experiences of the Bearpaw developers in the field of bow hunting, 3D shooting and technological development work. With this device Bearpaw put a digital measuring method respecting exact tolerances into practice. The spine tester measures exactly the bending of the arrow shaft in the range of 1/100 mm and guarantees an exact definition of your arrow material. Together with a German expert they developed the memory chip and the LED unit. The digital display indicates the exact analysis of the measurement both showing the unit lbs and optionally the exact spine value, directly and digitally on the display of the device. It is not necessary to convert the values once again by using tables.