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 - 3X9 Dimensions (cm) - 7X2 1 level Height (cm) - 247 2 Height level (cm) - 409 Width from inside to outside (cm) - 35.5 / 41 / 46.5 Package dimensions (cm) - 47 / 18.5 / 198 Weight (kg) +-5% - 15.7 1 m3 - 0.23 20 containers - 143 40 containers - 291 Truck 90 m3 (pcs) - 391 50m3 truck (pc) - 217