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Inventories

3 Months Ended

Mar. 31, 2021

5.	Inventories

Inventories consisted of the following (dollars in millions):


	March 31, 2021		December 31, 2020
Raw materials	$	197.1	$	198.8
Work-in-process		253.2		245.7
Finished goods		157.0		152.1
Demonstration units		93.4		95.7

Inventories	$	700.7	$	692.3

Finished goods include

in-transit

systems that have been shipped to the Company’s customers for which control has not passed to the customers as the systems were not installed and accepted by the customer. As of March 31, 2021, and December 31, 2020, the value of

inventory-in-transit

was $59.6 million and $67.8 million, respectively.