Each Stokke® product will have either a serial number, batch number, or clock symbol - this is entirely dependent on the type of product you have.
If you need to find any of the above for your products, we have a series of images uploaded to our Warranty & Claims form. Even if you have no actual warranty claim, you can use the dropdown lists available for the "Product Category" and "Product Type" selections, which will then show you where to find the serial number, batch number, or clock symbol for your product.