Ladder made of special aluminum alloy 3 stages 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 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 - 3X11 Dimensions (cm) - 7X2 1 stage height (cm) - 301 2 Height level (cm) - 517 Width from inside to outside (cm) - 35.5 / 41 / 46.5 Package dimensions (cm) - 47 / 18.5 / 306 Weight (kg) +-5% - 18.7 1 m3 - 0.28 20 containers - 118 40 containers - 239 Truck 90 m3 (pcs) - 321 50m3 truck (pc) - 179