Ultra Duty 6'x12' Finished Size Industrial Strength Green Polyester Canvas Tarp with Brass Grommets Approx Every 2 Feet All Round Military Grade Polyester Canvas, Full finished size Water Resistant Canvas Tarps. 16 Oz per square yard. Double Lock-Stitched for Maximum Durability Rust resistant brass grommets on all corners and along the perimeter approx. 24 apart - NO waxy feel; NO color stain; NO strong odor