Easy, tool-free assembly of back, seat and legs (Figure A - B)Aluminum frame is lightweight, durable and corrosion proof New pinch-free cover allows for push pins to be depressed without pinching finger The audible "click" will be heard when secure (Figure C)Legs are height adjustable in 1" increments, and angled with suction-style tips to provide additional stability Support collar prevents leg movement and reduces rattleMade using recycled materials