Made of high grade PVC material, good sealing performance, durable and wear resistant. Quick inflation and deflation after using for quick storage. Giving you a convenient user experience. There is a case to store the marker, with a hanging buckle on the top for easy attachment to your BCD. Bright orange color for high visibility, allows people to find your location easily on the surface. Ensures extra safety while diving, an indispensable accessory for every diver.