Setting a goal is the key to steady, forward momentum. These One-Design Polar Decals from Mac Designs will help you decided whether or not you are on par with your goals or if it's time to make adjustments. Target readings for each one design class are clearly and durably printed on a self-adhesive vinyl decal for easy application to most surfaces (including painted ones).
Overall size of each sticker: 10-3/8 in. x 6-1/2 in.. J105 Upwind and Downwind Polar Info shown: Target Wind Speed (6-20), Velocity, and Average Wind Angle (Downwind only)