Features: One-Hand Release Handle: Easy For Parents, But Too Difficult For Children Memory Lock: Allows For One-Time Width Adjustment Non-Marring Rubber Bumpers: Helps Prevent Damage To Your Home No Tools Required: Makes For Quick And Easy Installation White Plastic: Compliments A Variety Of Home Decors Great For Pets, Too! Astm F1004: Astm Int'L Standard Consumer Safety Specification For Expansion Gates And Expandable Enclosures Jpma Certified.