It’s strength lies in a multi-filament grid sandwiched between two hard-wearing polyethylene sheets. This tarp allows light to pass through making it ideal to work behind or underneath. These tarpaulins are almost completely see-through, customers find them ideal for working under cover; on boats in winter or on market stalls, for example. https://tarpaulinz.co.uk/product/extra-thick-clear-tarpaulins-350gsm-clear-reinforced-tarps/