GLOBAL 15' X 15' SUPER HEAVY DUTY 8 OZ. TARP BROWN THIS WOVEN POLY TARP IS WATERPROOF MILDEW PROOF TEAR AND ACID . 8 OZ. PER SQUARE YARD 16X16 WEAVE COUNT GROMMETS APPROXIMATELY EVERY 18 REINFORCED CORNER GROMMET. FINISHED SIZE APPROXIMATELY 2 SHORTER. TARP IS LIGHTWEIGHT YET DURABLE MANUFACTURED FROM HIGH-DENSITY POLYETHYLENE AND WOVEN INTO FABRIC AND THEN LAMINATED ON BOTH SIDES THEN FINISHED BY HEMMING THE EDGES WITH POLY TWINE INSERTED IN HEM. HOLDS TWO 55 GAL DRUMS. SUMP CAPACITY IS 66 GAL. ALL SEAMS AND HEMS ARE HEAT SEALED. UV TREATED. NOT RATED FOR HURRICANE WIND SPEEDS OR LONG EXPOSURE TO EXTREME HEAT OR COLD.