Orange, 3-1/4" fiberglass side rails. Direct rung to rail connections with patented Alflo rung joints. Slip-resistant Traction-Tred D-rungs. Non-marring end caps. Pre-pierced holes for easy field installation of accessories. Internal guides on bottom of fly section securely interlock rails. Interlocking side rails. External guides at top of base section securely interlock rails. Two sets on D6240-2. Rugged gravity-spring locks operate smoothly. Rope clamp ties rope to rung. Extruded aluminum shoe with steel ice-pick plate. Base and fly easy to separate. Equipped with heavy duty pulley with rope except for No. D6216-2. Molded rung braces. Durable rail shield bracket and shoe with shu-lok, slip-resistant pad and spur plate. Dimensions: Flange 1-3/16" wide; rungs 1-1/2"; Fly width 16" outside rails; Base width 19" outside shoes. Length of extension ladders when not extended is half the total length of the sections. Rental.