Silicon Putting Cup This silicone putting cup is a new golf putting aid that closely simulates a real golf hole and requires also a proper stroke to keep the ball in the cup similar to a real golf experience. This silicon putting cup reacts like a real golf hole, if you hit the ball too hard, you hole out - you hit the ball too soft you miss the shot, the stroke, just like in a real hole. Practice swing and putting routine and hole those balls. The product allows anyone to practice and it is equally suitable for pros or amateurs. outer diameter 17 cm weight 0.048 kgs