QUICKLATCH Equipped Runglock Provides Easier Method Of Securing Fly Base Sections When Extended. Heavy-Duty Plated Steel Swivel Safety Shoes With Thick Rubber Tread. Shoe Can Be Used With Tread Down Or In Spike Position. Tempered, Serrated Aluminum D-Shaped Rungs Provide For A Slip-Resistant Surface. Side Rails Are Full 3" Extrusions Shaped Into A Modified I-Beam For Strength And Light Weight. Interlocking Rails Keep Fly And Base Sections From Coming Apart. Meets Or Exceeds The Safety Standards Set By ANSI And OSHA. ProGrip- Integrated Surface Protector With Non-Marring, Slip Resistant Pads And Hand Grips. Dimensions: 3" Rail Depth, 5-1/4" Stack Height, 15-1/4" Base Inside, 14-5/16" Fly Inside, 17-1/8" Base Outside And 16-3/16" Fly Outside. AE4216PG Does Not Include Rope & Pulley.