For PARCELBIN, you can use any combination padlock or electronic lock, such as a Kitlock from our partner CodeLocks. To learn more about Kitlock, click here.If you would like to purchase an electronic lock for your PARCELBIN please contact us at info@citibin.com.Our Standard and XL enclosures come outfitted with a hasp which enables you to use any padlock. We also offer custom locking mechanism upon request.**Electronic locks and custom locking mechanisms are only available in the NYC Metro Area.