3/8 Inch Spiral Tilt-In Window Balance Rod with Red Bearing and Double Pins.
The colored bearing denotes rod strength. (See 4th Image)
Balance has double end pins, one locks into the balance shoe and one is for adjustment.

Rod Length: Varies - Choose Your Length
Rod Weight: Varies Per Length
Rod Diameter: 3/8 Inch
Application: Tilt-In Window
Color: Red

Please measure rod length from end to end of the metal tube and specify the needed length.

Video: How to Install Spiral Balance