The 560-3 is a 3 section, 60ft Aluminum Extension Ladder that has a duty rating of 250 pounds. The exclusive Alflo rung joint means Twist-Proof performance. The top fly section can be removed and used separately as a single straight ladder. The bottom base section and intermediate section can be used as a 40ft extension ladder. Shoes pivot for use on hard or penetrable surfaces. spring-loaded locks operate smoothly. duty rope and double pulley system lift fly and intermediate sections. spring-loaded locks operate smoothly.