No holes. No Hardware. No trip bar.

Aluminum Pressure Pet Gate Features:
• No obstruction to wheel chairs, vacuum cleaners or any rolling object.
• Opens fully - not partially as others do.
• Adjustable latch tension.
• Quick pressure adjustment
• 30" tall
• Fits all doors between 28" and 36".
• 2.5" space between the bars
• Adjusts from 28" to 36" wide (add CG08000W Width Extension for openings 36" to 44" wide or CG00301W Width Extension for openings 38" to 46.5" wide)

Not intended to prevent all child accidents. Not intended for use with children at top of stairs.