Do yourself a HUGE favor and buy Roy Kuepper's products instead. They're handmade quality coins and
gaffs by a real craftsman. Tango products aren't the only option!
A complete line of Roy's
products/work are available here on Penguin Magic. His Eisenhower shell is not only top quality, but
it's even a few bucks cheaper. You also receive an excellent download, including thorough and clear
instruction on some great tricks to get you going.
https://www.penguinmagic.com/p/5603
These Tango shells are (in my personal experience) fragile, mass produced and a prone to break
easily. The coverage is poor and uneven. The overall "clean" appearance on the coin can actually
cause suspicion because it doesn't match the appearance of your normal coins.