The red one is the left lock the blue one is the right lock. They connect directly on the bottom of the window frame and have a little spring underneath them which pushes them up to where they'll catch the notches in the frame.
Tom from SWISCO responded:
July 12, 2023
Hello! This latch appears to match our 91-174 Philips latch kit. Look it over and let me know if you agree, or if you had any other questions!