4' x 12' Customer Favorite Putting Mat - Indoor RollTech™ Putting Green Putting Green Speed:Medium (10 - 11 Stimp/ Private Course) They will reduce the size

They will reduce the size of the hole

BirdieBall putting mats were created for the discerning golfer who understands the importance of an authentic roll

BirdieBalls are made of a super polymer and are very durable

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Set up a full 6 hole course on the field outside or even in the school gymnasium for practice with your students or club members

4' x 12' Customer Favorite Putting Mat - Indoor RollTech™ Putting Green Putting Green Speed:Medium (10 - 11 Stimp/ Private Course) They will reduce the size*INDOOR USE ONLY* The only true rolling green on the market with authentic grain and stimp speeds. BirdieBall uses a patented aerated foam technology that simulates a natural grass putting green. BirdieBall putting mats were created for the discerning golfer who understands the importance of an authentic roll, grain, and speed. Named the Best Indoor Putting Green by My Golf Spy and Most Realistic Roll by Sports Illustrated, BirdieBalls Patented Tech