Wacom Bamboo Replacement Nib Set (2 Standard, 2 Flex, 2 Felt) For CTL, CTH, CTE, INTUOS Set Includes: 2 Standard Nibs, 2 Flex Nibs, 2 Felt Nibs. Hard Felt Nibs have increased friction for more of a pencil on paper feel. Flex Nibs are flexible, high-friction feel (White tip) Standard nibs are replacement standard pen nibs. Compatible with Pens for Wacom Tablets (Bamboo Tablets, Intous).