Add some punch to your swing and dampen vibration.
- Fits picks on new (newer than fall 2010) Quark, Ergo, and Nomic tools
- Fits Astro and Cascade picks for pre-fall 2010 Nomic tools (#U21100). Ice and Dry picks (numbered U19 5022534 and DRY U19 5022539)
- Does not fit Cascade picks (#68367) on Quarks produced before pre-fall 2010
