Images and designs are protected by copyright. © National Safety Signs Maintenance in progress W30109From: $8.71 Select Size Choose an option225mm x 150mm300mm x 225mm450mm x 300mm600mm x 450mm900mm x 600mm Material Choose an option.55mm Steel1.6mm AluminiumCorflutePolypropyleneVinyl StickerClear *Select Reflective NoneClass 2 Reflective (Similar to Car Number Plates)Class 1 Reflective (High Prismatic Road Reflective)Luminous Material (Glow in the Dark, Emergency signs, NOT Road Signage) Protective Overlaminate Have Additional Instructions? Maintenance in progress W30109 quantity Add to cart or quote Related products Sharp Edges W3030 From: $8.71 Add to cart or quote Watch out for Pedestrians W3035 From: $8.71 Add to cart or quote Boiling Water W3004 From: $3.51 Add to cart or quote Tripping Hazard W3034 From: $8.71 Add to cart or quote