Weather Stripping Brush Seal Strip is crafted from high-density polypropylene fiber, renowned for its durability, flexibility, and resistance to wear and tear. The thick and soft brush fibers ensure a snug fit, effectively blocking drafts, dust, and noise, making your home more comfortable and energy-efficient. 5mm x 6mm (base width x pile height) suit for 1mm-4mm gap. 5mm x 8mm (base width x pile height) suit for 4mm-6mm gap. 5mm x 12mm (base width x pile height) suit for suit for 7mm-10mm gap.