Constructed of economical silt fabrics and hardwood stakes, spaced every 10', 11 stakes per 100' 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 gallons/minute squared permittivity (1 sec).