The TruSlope is a green-reading ball marker used for golf. It will tell you the slope of the green wherever you set it down, making it much easier to read greens and make putts. Designed for golfers of all skill levels, the TruSlope ball marker will help all golfers enjoy this difficult game and improve their own without even practicing any more than normal. It is exclusively for pre-order on Kickstarter and we need your support to get it in pro shops and golf stores everywhere.