Package of four black skirted 1-10 knobs with silver disc. Push-on mounting. Fits standard "D" shaped solid shaft amplifier pots, but knobs are smaller in size than the traditional vintage-style skirted amp knobs. I measured .903" diameter on the bottom skirt. Fits Bassman® 200, Cyber Deluxe®, Bullet 15 DSP, Deluxe™ 90 DSP/900, Stage™ 100 DSP/160 DSP/1000/1600, Bassman® 400/1200 PRO, and Acoustasonic™ SFX II amplifiers. Warning! These knobs will not fit standard full round solid shaft pots. Brand New. Genuine Fender 0053986049. UPC 717669612368. Our current supply came from Fender as raw parts so no packaging.