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Inventory (Tables)
6 Months Ended
Nov. 30, 2019
Inventory Disclosure [Abstract]  
Schedule of Inventory

Inventory consists of the following:

 

    November 30, 2019     May 31, 2019  
Raw materials   $ 1,701,839     $ 1,295,991  
Finished goods     1,991,152       1,325,000  
Total inventory   $ 3,692,991     $ 2,620,991