Round, circular piece, 1cm wide, clear.
It takes you back to the home screen of any Apple device.
Country of Origin
City of Origin
Longhua Town, Shenzhen
Foxconn Factory in Longhua Town, Shenzhen, China
It was made by Apple to use for their devices. Designed in 2001.
The home button is built of sapphire, a metal ring, a biometric sensor, and opaqued silicon.
I found this information on the Apple website and the blogs/websites of Apple experts.
Home button, “Home Button,” Mapping Our Devices, accessed October 19, 2020, http://maps.dgst101.net/items/show/248.