Aluminium Extension Ladder As Per Is 4571/1977 Or Latest, Closed Height : 06 Mtrs, Extended Height : 11 Mtrs ,Aluminium Wall Supporting Extension Ladder Manufactured From Aluminium C Shape Section Of Size- 66.6 Mm(L) X 31.7Mm (W) X 3.5 Mm (T) Confirming To He - 30 Grade T-6 Temper As Per Is: 733 And Aluminium 25 Mm Diameter Non Slippery Round Corrugated Tubing Fitted With Heavy Duty Safety Lock , Nylon Rope And Pulley And Rubber Pads At Bottom And Top End. Twist Proof And Unbreakable Performan