This Tory Carrier 13 Steps Telescopic Ladder Thickened Aluminium Multifunctional Ladder 149.6" with a very thoughtful design, humanized handle, easy to carry. Anti-slip tread, anti-slip foot cover, low temperature resistant and anti-corrosion. Thickened top cover, making it load-bearing and resistant to wear and tear. Anti-slip concave pattern of the cross-file, increasing the load-bearing strength. Cross-file rivet reinforcement to enhance stability.