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2. INVENTORIES (Tables)
3 Months Ended
Mar. 31, 2021
Inventory Disclosure [Abstract]  
Inventories
    March 31,
2021
  December 31,
2020
         
Raw materials   $ 39,855     $ 21,484  
Finished goods     536,752       398,125  
    $ 576,607     $ 419,609