Pack of 4 TAOT Custom Spec'd CTS 500K long/split knurled shaft audio taper potentiometers. We're are pleased to offer our own custom branded and spec'd pots manufactured by CTS. These are identical in construction to CTS's high quality 450G series pots but are metered to be within the 500K to 550K range. This means no exceptionally low or high resistance pots. We're very pleased with these pots and think you will be too! 500K Ohms/5% Tolerance (Metered to range of 500K to 550K) Audio Taper Bakelite base plate Solid brass c-clip reinforced shaft Solid brass bushing 3/8-32 US thread 3/4" (long shaft) bushing height Split, fine 24-tooth knurled shaft 1/4" diameter shaft Each pot comes with hardware - two nuts, dress washer and lock washer Requires 3/8" diameter mounting hole Pot is manufactured and branded by CTS specifically for The Art Of Tone (TAOT), Part # 450S525KXL TAOT. Note: 1. If you are uncertain whether your guitar uses short (3/8") or long (3/4") shaft pots, as a general rule this pot will fit most USA-made Gibson Les Paul's manufactured after 1977 excluding historic reissues, but please double check before you order. 2. Make sure to pinch the tip of the shaft before you try fitting a knob, this will avoid getting knobs stuck before you install the pot.