Durable plastic tip with special valve mechanism. The metal powder pigment ink writes brilliant lustrous colours on almost any surface. Pilot silver, gold and white super color markers write smoothly and the opaque, permanent type ink covers background colours without running or being absorbed. The cap must always be securely attached and pointed up when shaking. Shake several times, remove the cap and press the tip down 3 or 4 times on scrap paper to start the ink flowing. Cap the pen tightly and keep it horizontal when not in use. Xylene free.