JEF WORLD OF GOLF fairway/rough practice mat the JEF WORLD OF GOLF fairway/rough practice mat allows you to practice your tee shots, fairway shots and rough shots all on one mat. It is made of a heavy-duty synthetic grass material on an extremely durable rubber base. Features: dimensions: 1 x 2 includes three assorted sized rubber tees (1 1/8, 1 1/2 and 2 1/8)