Made of high quality solid brass, sturdy and durable, surface antioxidant treatment, never rust or fade. Dimension: diameter 28mm. Height 20 mm, weight: 33g Minimalist design matches any cabinet style, prefer your kitchen, bathroom, living room, drawer, dresser or update some old furniture. Very easy to install, screw length 25mm. Suitable for 18-22mm thick wood board. The package includes 10 brass knobs and 10 screws.