We can send you a template or you can download it here. On the first paragraph, you only have to write your full name and your phone number. On the second paragraph, you have to write your full name, your shipping address and your phone number. The table should be filled with the DETAILED content of the parcel, indicating the prices for each individual item in euros. This documented in presented to Spanish customs, so it must indicate detailed information of the content of the parcel. Do not indicate vague information such as: Clothing, electrical devices, samples, etc. You must list each item, quantities and value per item.
Remember that to send an international shipment, for customers that are outside Europe, you must fill a proforma invoice. Download Proforma template.