Hi Jay,
Thank you for your mail.
The contact kit is not that big, I have attached a picture next to pen so you can see the size. I would suggest that we send the 20 contact kit in a postal letter to your address in Thailand, I guess it won't be stopped by the customs when it is in a postal letter. We could also send two letters with 10 pcs. each if that is better? The postal letter would also be cheap in shipping costs.