Description: Keys and battery locks have a number on them and are unique, so all keys must be customized. To ensure the security and accuracy of your order, please send a full photo of the e-bike and the key code on the battery lock to our email address: [email protected]. A set of keys consists of 2 keys . All keys are custom-ordered and crafted specifically for you upon order placement. Timeline: The production cycle for your customized key is approximately 3-4 weeks. Delays may occur due to long holidays or other unforeseen circumstances. Please note that the customized keys take approximately 7-10 business days to ship from our Asian factory to the customer's address. Depending on your location, customs duties or taxes may be applicable and are the recipient's responsibility. Note: Due to the personalized nature of these orders, all sales are final. We do not accept returns, order cancellations, or refunds.