View Single Post
  #7  
Old 12-23-2022, 01:44 PM
Zach Wheat Zach Wheat is offline
Member
 
Join Date: Apr 2009
Posts: 1,672
Default

Al,

There is a UV receptive substance added to the bottom of the top flap of the closed pack. The packs are wrapped in a hot selaed plastic wrap, so the UV glowing spot is not as easy to see.

See pic below
Attached Images
File Type: jpg Flap 2 Reduced.jpg (192.1 KB, 254 views)
Reply With Quote