Specially designed to use in Auditorium, Theaters, Factories and Industries. Rope stoppers, and pulley arrangements are provided along with special accessories. Comprehensive Range of Good Quality Aluminium Made from High Tensile, Aluminium Alloy Designed for Trade and Industrial Use. Constructions: This Ladder is used where no wall support is available Indispensable, Ladder, Light in Weight Tough, Durable sturdy and safer to climb Provided with safety Ring footrest, Tool Tray Handrail, Solid Rubber Shoes or Wheels. Extension by means of Pulley Rope with self lock bar and adjustable at any Interior step. Extends smoothly and the Lock Adjustment between the step. Available:- 66 x 31.75x3mm, Thickness 3mm, 3.5mm 4mm