• Material: Steel With Nylon

• Finish: Zinc Plated

• Installation Size: 7/16" Dia. X 2" Deep

• Guide Rollers Stay In The Track And Adjust To The Door Frames That Are Not Square

• Ensures Smooth Operation

WARNING: This product can expose you to chemicals including diethylhexyl phthalate (DEHP) which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.