This is a double pack with two straight adapters from Bitspower Touchaqua. The adapters can be adjusted in length from 16 to 22 mm with the additionally required female adapter, for example to connect the water cooler of graphics cards.Technical details:- Material: brass- Colour: Black (Glorious Black)Connections:- 1x G1 / 4 inch external thread- 1x Male Link TubeCompatibility:- Bitspower Touchaqua Link Adapter Female G1 / 4 inch AG to Link Tube adjustable 16-22mm - 2-pack, black (Item No .: WC-686-BP)- Bitspower Touchaqua Link Adapter Female G1 / 4 inch AG to Link Tube adjustable 16 -22mm - 2-pack, silver (Item No .: WC-687-BP)Attention: This adapter must be combined with another adapter from the Bitspower range to ensure the desired function. Suitable adapters are article no .: WC-686-BP and WC-687-BP.