8' X 12' Porcelain Rectangle Premium Quality Sun Shade Sail Made in the USA with commercial grade materials. Marine grade 316 stainless steel corner rings Meets NFPA 701 - 1999, ASTM E-84 Class A fire standards Blocks over 90% of harmful UVA and UVB rays A strong 1 1/2" webbing is sewn throughout the perimeter with double rows of locking stitches Extremely durable and suitable for commercial applications. No Seams!