The first thing that draws attention to this theory11 deck of Sentinels is naturally its box. It is covered with small white dots; mysterious symbols of secret societies; scarab beetles and swords; and vignettes - all printed in a deep metallic ink. Besides, theory11 claims that the box is 40% thicker than the standard one which significantly increases its durability.

These cards were designed by the famous Californian company, Hatch, who have been known to design products for big brands like Coca-Cola, Pepsi and Starbucks.

Printed on the Q1 press - the best the United States Playing Card Company has to offer - Sentinels are also coated with plastic 909 Premium Finish which is very similar to the one used in Ohio-made Arrcos. Each of the court cards features some of the symbols seen on the box. Suits are designed to represent the mystic theme of the deck. Sentinels also have a double backer card for those interested in magic tricks.