Door Draft, Light, Dust Stopper All Natural Buckwheat, Many Colors & Sizes (3" x 38", Buoys) Order 32" for 30" wide door or window, 38" for 36" wide door or window 2" for 1" gap, 3" for 1.5" gap, 4" for 2" gap (space below door) Stop cold, heat, light, dust, noise, and pollution at your door Traditional one-sided draft stopper, provides the best seal All natural, chemical-free, clean buckwheat hull filling