For my backyard putting green, I opted for the Aluminum Flag Cup from GST, and it was the right choice. It’s incredibly sturdy and gives a premium feel to the green. The aluminum is resistant to weathering, and it’s maintained its shine despite being exposed to the elements. It also produces that satisfying "clink" sound when the ball drops in, just like on a real golf course. Installation was easy, and it fits securely in place. This is a high-quality product that enhances the golfing experience at home.