Constructed of economical silt fabrics and hardwood stakes, spaced every 10 ft , 11 stakes per 100 ft of fabric. Erosion and sediment control material, helps protect environment. Contains sediment, topsoil, and other organic material while allowing water to flow through. 125 lbs. grab tensile, 15% grab elongation, 347 psi mullen burst, 60 lbs. puncture, 80 lbs. trapezoidal tear, 80% SR UV resistance, 30 Gal /minute squared permitivity (1 sec).