I ordered the MusicLily 2 pack of B250k push pull pots to do a custom wiring job on a 2010 Oscar Schmidt OE-30 guitar, one push pull to wire in a half-out-of-phase between the bridge and neck pickups, and the other to wire the bridge and neck pickups in series. The 250k pot value measured 254kohms on one, and 246kohms on the second pot, both within 2% +/- tolerance. The switch functions also metered correctly, and the pot wiper action and switch pull are both very tight, not loose, so I am happy with this purchase, great value for a great price.