Correct. Stuff two chip boxes in a SFRB with padding between, cut off the excess cardboard, slip another SFRB over the first one and tape it all up. Then insert in padded envelope and tape it tight, then put that in another padded envelope and mail. Make sure the UPC code can be scanned to get the Priority Padded Envelope rate.So 200 chips comfortably in a small padded envelope with another padded envelope over that for more protection