SIZE -- 12-inches in length,hose features two female -4AN /-3AN aluminum blue fittings. MATERIAL -- Premium stainless steel outer covering for strength;Teflon lined for flexibility. FOR NITROUS -- Stainless braided hose is the ideal hose for nitrous lines because it is durable,flexible,and resistant to abrasion.And can with stand the extreme pressure of any nitrous or fuel system. ANODIZED FITTINGS -- This NOS stainless steel braided hose comes with -4AN female ends (including step-ups) and is configured for superior flow to strength ratio. MULTIPURPOSE STAINLESS HOSES -- Our stainless braided hoses are pressure rated up to 12,000 PSI and can withstand high temperatures and are flexible so that you can make it work with any application.