Waste shaft consisting of 11 plastic pipes. Waste shaft for safe conduction of construction waste from a height down through a shaft and minimising damage and hazards. · Easy installation ·Adjusted edge (two-point coupling system) · Safety-heavy prevents accidental release ·Stable ·With 4 side spacing pieces ·The material is robust and moisture resistant · Sound and shock absorption thanks to the ribbed shape and material · Upper outer diameter: 59 cm ·Over inside diameter: 50 cm ·Inner diameter at the bottom: 38 cm Height: 106 cm ·Made of high quality linear polyethylene. LOT with 11 sts. see pictures. For extreme resistance and long life