It is made of radiopaque polyurethane and used in relieving simple, tension, spontaneous, and iatrogenic pneumothorax. A one-way stopcock, connection tubing, needle obturator, and Cook Chest Drain Valve are included in the trocar version while the Seldinger-placed version has a needle, dilator, wire guide, connection tubing, Cook Chest Drain Valve, and one-way stopcock.