Description: l High quality for professional use l Comfortable to touch, make the operation more smoothly l Replacement the old knobs and switch covers l The power switch cover is suitable for: TDS210 / TDS220 / TDS224 / TDS1002 / TDS1012 / TDS2002 / TDS2012 / TDS2014 / TDS2024, etc. l Oscilloscope knob caps are suitable for TDS3054-TDS3054B, TDS3052-TDS3052B-TDS3052C, TDS3034-TDS3034B-TDS3034C, TDS3032-TDS3032B-TDS3032C, TDS3014-TDS3014B-TDS3014C, TDS3032-TDS3012B, TP02024, TP02022, TP02012, TDS2024, TDS2022, TDS2012, etc. l 4 Types: Big Knob, Small Knob, Power Switch Cover, Big Knob+ Small Knob+ Power Switch Cover (Optional) Package: (Optional) l 1x Knob OR l 1x Power Switch Cover OR l 1 Set x Big Knob+ Small Knob+ Power Switch Cover Note: l Please make sure that this item is suitable for your device before making an order. Any questions, please feel free to contact us.