Simple Span Gauge for those who want to measure! Bowling Ball I made this for bowlers who want to try measuring. Many people who enjoy sports bowling leave the ball drilling to the drillers, but there are also many who want to measure the span themselves. However, soft rulers with inch markings are not readily available, so I made this. It's not a perfectly clean product, but the scale error is reasonably accurate, so it's practical. (Some of the scale numbers are smudged (＞人＜;) I couldn't fix it, so I gave up.) The feature is that the center end of the protruding part on the back side is aligned with the 0 mark, making it easy to align from the hole edge, and the back part is extended, making it easy to press along the ball surface, making it very easy to use. Made of resin, approximately 2g This is a very convenient item to have. Additional note: It may soften and deform when the temperature inside a car is high in the summer, but it will return to its original shape if placed on a flat surface and the temperature drops. #Bowling #SpanGauge #Inch #Ball #Drill #Measurement #Ruler #Gauge #ConvenientGoods