In order to ensure optimal safety, we recommend that you add a crossbar for any purchase from two ladders.
CHARACTERISTIC
Here are the size matches:Ladder Height 90cm / Length 60cm = Crossbar SLadder Height 90cm / Length 90cm = Crossbar SScale Height 170cm / Length 60cm = Crossbar MScale Height 170cm / Length 90cm = Crossbar MLadder Height 220cm / Length 60cm = Crossbar MLadder Height 220cm / Length 90cm = Crossbar L