Please contact if buying from outside the United States and it's territories. We are based on a Caribbean territory, and still experiencing fluctuating postal prices. Therefore shipping must be calculated by location. This could increase the processing time up to a week. We always pack everything waterproof by using plastic zipper bags, and tape if needed. Also, for all shipping: I use the USPS app and a weight to calculate shipping. Unfortunately there are some discrepancies between the USPS app and USPS ofices of Puerto Rico. That some times can creates discrepancies on the final shipping cost. Sometimes it can result on a cheaper rate. When that happens the difference is refunded to you. But sometimes, it can result on a higher rate, which will have to be paid in order to complete the shipping. Please keep this in mind. I am terribly sorry for this inconvenience. I do my best to give an accurate shipping price.