Thank you for viewing. This is a volume pot for a ZO-3. It's for the older ZO-3 models. It can be used on the ZO-3 models where the pot is visible after removing the battery box. It cannot be used on models where the pot is not visible due to a circuit board. Please be sure to check the shape and size before purchasing. Returns due to size differences are not accepted. This product will be shipped via standard mail (regular or non-standard). Please understand that we are not responsible for the delivery status or any guarantees. *Standard mail does not deliver on weekends and holidays, so it may take up to a week in some cases. *Please refrain from negotiating the price of this product. A-curve 500KΩ A500KΩ 18mm pot Mini pot Small pot