Navigator Alpha tips feature 10 layers of Japanese pigskin leather that are glued, then compressed for 3 minutes. This process results in a tip that mushrooms less and provides a firm and crisp hit. The base layers have a different density, allowing them to act like a bumper. This reduces pressure on the tip and helps protect the ferrule.Tip Details:Color: RedDiameter: 14 mmHardness: SoftLayers: 10Material: Japanese Pigskin