The Sure Putt Pro green reader is made from high grade machined aluminum and electrically anodized to seal in the color with the metal. It won't fade or chip like paint. A precision state-of-the-art leveling vial is used to read the slope and give a precise reading. The Sure Putt Pro is heavy enough (4oz) to lie flat on the green and small enough (2") to fit your new caddie comfortably in your pocket. Each Sure Putt is machine engraved to order and comes with its own carry bag and instruction card.