A test record is the vinyl sent from the manufacturer before the final product is pressed. 5 test records are made for each pressing.
Each record has label from the pressing company and is on a heavy black vinyl.
They play on a turntable just like any other record.
More info on what a test pressing is: https://www.gottagrooverecords.com/what-are-test-cuts/
Synthetic Love 2nd Press, Soulless Computer Boy, Die With You, Ultraparanoia, and Bots Don't Cry come with a full color 12" sleeve.
Does Not Exist comes with a black and white sleeve and 24" color poster. Synthetic Love 1st Press does not come with any other sleeve.