It is single end luer lock which is used as a male stopper.
Color Code: White
Injection stopper supports auxiliary use during infusion therapy.
Color Code: Yellow, Transparent
Dual-end male/female luer lock, quick-apply, non-injectable cap.
Color Code: Red
Needle-Free Connector is a single-use device
Color Code: Transparent
Needle-Free Connector is a single-use device
Color Code: Transparent