This SCAN Safety Sign is made from 1mm thick, durable PVC. It's aggressive water-based adhesive enables the sign to easily stick on to and remain on any wall. Printed with UV resistant inks, which resist fading. It is easy to read with clear instruction and illustration. Complies with BS5499 and/or ISO 7010 design criteria where applicable. Helps limit company liability should accident occur. Specification Size 400 x 600mm Message 'Danger Deep excavation'