Package includes 2 pcs silver G1/4" Female to Female 90 Degree Angled Fittings. Thread Size: G1/4" Female to Female, Adapter Height: 21 mm/ 0.82 inch( the thread included), OD is 17.6 mm/ 0.7 inch. Material: The connector is made of brass for rust and corrosion resistance and long durability. Design: G1/4" Female to Female Extender Fitting, 90 degree Angle, with black O-ring for sealing and preventing water leakage. Application: Suitable for PC Water Cooling System fittings.