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 lb. Grab tensile, 15% grab elongation, 347 psi Mullen burst, 60 lb. Puncture, 80 lb. trapezoidal tear, 80% SR UV resistance, 30 gal/min squared permittivity (1 sec).