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INVENTORIES, NET (Tables)
3 Months Ended 12 Months Ended
Mar. 31, 2021
Dec. 31, 2020
INVENTORIES, NET    
Schedule of inventories

March 31, 

December 31, 

    

2021

    

2020

Work-in-progress and finished goods

419,825

371,799

Less: Inventory reserves

Total inventories

$

419,825

$

371,799

December 31, 

December 31, 

    

2020

    

2019

Raw materials

$

8,137

$

Work-in-progress and finished goods

363,662

Less: Inventory reserves

Total inventories

$

371,799

$