Cleveland CG10 Black Pearl wedge comes with a dark micro-coating that reduces galre without affecting performance. Each Cleveland CG10 Black Pearl wedge is made from a proprietary material called - Carbon Metal Matrix, or CMM. With this breakthrough new material, Cleveland has once again redefined wedge performance. The mission was clear. Develop a material that damps vibration in an unprecedented fashion and can be readily manipulated and engineered for performance. The answer: Carbon Metal Matrix (CMM). This new material, while not a composite, is infused with 17 times more carbon than traditional 8620 and 1020 carbon steels. Using a process unique to CMM, the carbon is infused into microscopic spheres suspended within the molecular structure - creating a matrix that is 10% less dense and 15% softer than traditional carbon steel. These density relieving spheres within CMM dramatically damp vibration, offering a pure, soft feel never before achieved in any golf club. Measuring 77 on the Rockwell B hardness scale, CMM is the softest feeling material ever used in a golf club head. Extensive player and robotic testing showed the CG10 to have launch angles and spin rates consistent with those trusted by our tour staff. The CG10 comes in three bounce settings indicated by 1, 2 and 3 dots on the club. The Low Bounce Wedge is an outstanding choice for shots from tight lies and firm turf conditions. The combination of less bounce and narrower sole width lowers the leading edge of the blade to promote clean contact on every shot. Perfect for players who like to be creative around the greens and in the bunkers and who have shallow attack angles through impact. Less bounce and narrower sole width make it easier to open the face and hit high, soft landing flop shots. The Standard Bounce Wedge is the best all around wedge for playability in all types of conditions for all types of players. It is very versatile for players who like to be creative around the greens. The Standard Bounce is also an excellent choice for players who like to play an open or square face out of the bunker, and who have an average to slightly steeper attack angle. The High Bounce Wedge is designed for play out of extremely soft turf conditions and sand shots. The combination of the wider flange and ample bounce angle prevent digging and create a smoother gliding action of the sole along the ground. Works exceptionally well out of the sand for those players who prefer to keep a square face through impact. Additionally, the High Bounce is an excellent choice for players with extremely steep attack angles.