Specification:Item Type: Water Cooling Tank BubblesMaterial: BrassSpecifications:Total Length Approx.25mm / 1.0in (Including Hand Screw Position), Outer Diameter Approx.18mm / 0.7in (Hand Screw Position)Thread: Outer G1/4, Female Thread G1/4Fixing Method: Hand ScrewHow to Use:DIY installation prepare to usePackage List:1 x Water Cooling Tank Bubbles