Extension and Retraction Design: Compacting from handy 109cm (3.58ft) to 6.2M (20.34ft). With inward slide latches, you can adjusts the height of the ladder rung by rung in 30cm increments to fit specific requirement such as repairing ceiling lights, hanging picture frames or painting walls; Safe and Compact: Comes with 2 Hooks for secure fixing. Featuring durable aluminium design, industrial-grade height-locking latches and solid anti-slip rubber-tipped feet on the bottom of ladder step. The telescopic ladder is approved by safety standard EN131; Portable and Convenient: Weight approximate 36 lbs (16.3Kg), 15 steps; folded height of 3.58ft, it is easy to be stored in car trunks, under beds, or in storage closets. Maximum load capacity: 330 lbs(150Kg); Easy to Operate: For extension, start from the top and extend each step fully, then you can hear the "click" sound (confirm both left/right locks are in place); for retraction, start from the bottom and unlock one step