The JCS Blew Tube replaces the stock power tube that comes as standard with Tippmann 98 markers. The tube features a protective blue / "blew" anodised finish and is constructed from aircraft standard aluminium. The Blew Tube provides improved performance and air usage. You will need the tools that were supplied with your Tippmann 98 as standard to fit this upgrade. The kit includes one tube and one Delrin Hexadecagon front bolt.