The Comp Lyfe Battle Cap X is made to be used with the Battle Deck. 

• Engraved skull logo on one side and 'The Battle Cap X' on the opposite side.
• Fits the Battle Deck, Torpedo Atty, Tugboat, and others with the same size diameter.
• All Battle Caps are manufactured in an ISO certified medical grade facility with ISO 9001 : 2008 certification.
• FDA registered, machined with naval brass and stainless steel.
• Gasket in the top works with all Comp Lyfe wide bore drip tips.