groove Lock convertible platform type ladder Queen Couscous tragedy
Werner P7400 5-ft Fiberglass Type 1A-300-lb Load Capacity Platform Step Ladder in the Step Ladders department at Lowes.com
Amazon.com: Marinebaby 3-4 Step Ladder Under Platform Slide Mount Boat Boarding Ladder, Telescoping Ladder with a Carry Handle and Mounting Screws, Press-Type Spring Latch (3 Steps) : Sports & Outdoors