Ladder made of special aluminum alloy 2 stage of use Easy to open and close Use one piece One neat package that is ready to use Specially designed steps to prevent slipping Industrial use Long lasting Double-sided inflation at the dimensional attachment point to ensure maximum strength and stability of the steps Number of steps - 2X11 Dimensions (cm) - 7X2 1 stage height (cm) - 301 2 Height level (cm) - 517 Width from inside to outside (cm) - 100 Package dimensions (cm) - 42 / 13.5 / 306 Weight (kg) +-5% - 12.5 1 m3 - 0.18 20 containers - 183 40 containers - 372 Truck 90 m3 (pcs) - 500 50m3 truck (pc) - 278