This ceiling leak diverter is made of 10 oz Heavy Duty Yellow Flame Retardant Vinyl Laminated Polyester. These heavy drain tarps protect personnel and equipment from overhead leaks, such as roof and ceiling leaks. The special design of the roof leak diverter catches and drains water safely away from the leak area. Heavy-duty metal D-rings are sewn into each corner of the drain tarp to facilitate hanging. Drain tarps of sizes larger than 10' x 10' have heavy-duty metal D-rings on the center of each side. The roof leak diverter's drain spout connects to a standard 3/4" garden hose that serves as the drain tarp downspout. Black Leak Tarps are also available, click this link.