700123Lightweight putter head V2ClosedGRD Proof of MarketInnovate UKGolf putters are the most extensively used of all golf clubs, accounting for 50% of all strokes. Because putt shots are so numerous, even small improvements in the accuracy of these shots would pay off. Putter head design is currently determined by convention, not science. The project will test the market for new designs of putter head based on a novel concept, namely optimising the total mass and mass distribution across the head. This promises a revolution in the design of putter heads. The behaviour of a putter depends on both physics and human factors and in this project the potential of our ideas are to be tested in the market.