... -owned Patent, no patent problem 3. ALDI, WARLMART, TESCO, MAPLIN 4. BSCI , CNAS 1.Loading capacity 150kg 2.Thickness of aluminum ... .5mm 3.Open size 261x46.8x7.5cm 4.Folding size 66x46.8x7.5cm5. Height: 2m+2.6m6. EN131/GS/TUV cert.7 ... , CNAS SMART SIZE, FINGER PROTECT DESIGN aluminum step telescopic ladder 2m, 2.6m, 3.2m, 4.4m, anodized colour with EN131/GS/TUV & Patent