Frixion Synergy Knock Refill 3 Pack (LFRF)

3 Pack of refills for the . This refill has the Synergy Tip, the hybrid needle-nose conical tip that ensures smooth writing with the finest of tip sizes. Available in your choice of blue, black, or red, now in 3 tip sizes! Each refill set includes 3 refills. If you're looking for more color options, check out the that are available. These refills are also compatible with pens such as the and Frixion Point Knock.