Ladder made of special aluminum alloy 2 stage of use Easy to open and close One neat package that is ready to use Specially designed steps to prevent slipping Industrial use Extreme strength, long lasting stainless steel Double-sided inflation at the dimensional attachment point to ensure maximum strength and stability of the steps Number of steps - 2X11+2X11 Dimensions (cm) - 7X2 1 stage height (cm) - 301 2 Height level (cm) - 517 Width from inside to outside (cm) - 35.5/41 Package dimensions (cm) - 100 Weight (kg) +-5% - 420 / 270 / 3060 1 m3 - 26 20 containers - 0.38 40 containers - 176 Truck 90 m3 (pcs) - 237 50m3 truck (pc) - 132