Thank you for viewing. This is a set of 10 mono input/output jacks for electric guitars and basses. (Millimeter) Female. The size is 6.35mm. *Although new and unused, there may be some minor stains due to the imported product. Please understand this beforehand. Shipping will generally be the day after payment is confirmed. It may vary depending on the timing. If there is a significant delay in shipping due to being out of the house, etc., please contact us if you are in a hurry. With the above in mind, please bid. Thank you very much.