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Concentrations
3 Months Ended
Mar. 31, 2022
Concentrations  
5. Concentrations

Concentrations. During the three months ended March 31, 2022, three customers accounted for 27%, 23% and 11%, respectively, of the Company’s total net sales. During the three months ended March 31, 2021, two customers accounted for 17% and 14%, respectively, of the Company’s total net sales. At March 31, 2022, three customers accounted for 23%, 19% and 17%, respectively, of the Company’s total accounts receivable. At December 31, 2021, two customers represented 25% and 19%, respectively, of the Company’s total accounts receivable.