Constructed of economical silt fabrics and hardwood stakes, spaced every 6 ft, 17 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. Grab tensile strength of 125 lb. Grab elongation of 15%. Mullen burst rating of 347 psi. Load rating of 60 lb for puncture, load rating of 80 lb for trapezoidal tear. SR UV-resistance of 80%. Squared permittivity (1 sec) of 30 gal/min.