Solid brass body and stem. Thread size G 1/2" BSP. Rubber O ring at the bottom, with threaded collar. Clockwise (Blue) and Anti-clockwise (Red) to turn the tap on. 20 teeth on spline (top of stem) for handle, stem drilled with M4 threaded hole. Fit for taps of basin in bathroom, kitchen, etc. Suitable for both cold water and hot water. Solid brass body and stem. Specifications: Material: Brass, Ceramic Spline Diameter: 7.6mm Teeth on Spline: 20 Teeth Thread size: G1/2 (1/2" 20.5mm) Threaded Collar: With Threaded Collar Size: 51mm x 18mm (Please view the picture for detail dimensions) Package Includes: 1 x Replacement Tap Valves (Clockwise) 1 x Replacement Tap Valves (Anti-clockwise) Dear customer, Thank you for choosing our products. If there is any problem with our products, please contact us through the order information. We will be happy to serve you and solve it for you as soon as possible within 12 hours, thank you