4.1-meter telescopic ladder, aluminum telescopic ladder, non slip feet, maximum capacity of 300 W2717P256991Safety and flexibility: Our 13. 5 foot telescopic ladder puts safety on each step with a separate telescopic fixed lock to prevent fingers from clamping. The height can be adjusted to meet various requirements of the 9 foot ladder task. Safety is critical! Lightweight aluminum alloy: Made of high quality aluminum, our expansion ladder is161. 42feet (about 4. 1meters), lightweight and portable, easy to move around the house. ladder can easily store