Mi Putting Template is a putting mat that gives you visual and cinesthesic feedback from one of the most important aspects of putting and controlling the angle of the face. The stencil series (12, 15, 18 and 21 degrees) represents four common curvatures or line sheets. The 12 arc represents a flat arc, 15-18 provides medium arches and the 21 provides a strong archive. The number shows the degree of oblique level. Available in 12° or 18°.