Stratocaster knobs of Xybguitars are for Strat style guitars. Also fit for SQ guitars. Stratocaster guitar knobs are made of is ABS material. Strat knobs contain certain level of hardness for durable using. Knobs of ST and SQ guitars are for volume and tone control. Taper shaped. Top diameter is smaller, that is 17.1mm. And bottom diameter is 25.4mm. Inner hole diameter is 5.6mm. Besides, there’s aluminum cover on top with printed mark of “volume” and “tone”. Frequently, three PCS of knobs are used together, 1 PCS of volume knob and 2 PCS of tone knobs. The installation is very easy. Introduced gold color. Further more, with embossed numbers 0-10 for easy adjustment. The net weight is around 1.8g. For these knobs, MOQ is 100 PCS.