Wellputt Premium 13ft Golf Putting Mat Wellputt designers have created a mat suitable for modern home interiors. Contrasts allow better visibility of the mapping areas. Used by the worldís top professional players, the Wellputt Mats are the most scientifically accurate in reproducing a real-life green. Their patented design & rolling speed have been tested by our engineers and coach Cameron McCormick to make you a putting expert. Features: Wellputt Premium 13ft Golf Putting Mat * Length : 13 ft * Width : 1.64 ft * Stimp meter speed : 10/11.5 ft (High Speed) * Weight : 4.3 lbs * Approved by Cameron McCormick * Aiming & speed control training * More than 50 practice exercises * Wellputt App for iOS & android