Inventories consisted of the following:

	As of December 31,
	2020		2019
Raw materials	$	378,547	$	288,687
Finished goods		1,087,194		1,138,394
Low-value consumption goods		69,774		31,801
Work in progress		609,440		416,028
Total Inventory		2,144,955		1,874,910
Less: reserve for obsolete inventories		176,805		-
Total	$	1,968,150	$	1,874,910

Inventory includes raw material, work in progress, and finished goods. The Company reviews its inventories periodically to determine if any reserves are necessary for potential obsolescence or if a write-down is necessary if the carrying value exceeds net realizable value. We recorded reverse for obsolete inventories of $176,805 and $0 as of December 31, 2020 and 2019, respectively.