Features: for gas hob with knob with 6 mm shaft diameter a molding, durable, the quality is very good Small and light, simple and modern design, concise and stylish Built-in hole for easy installation, smooth surface is easy to clean and comfortable to grip Perfect gadget for family or restaurant kitchen, widely used for cooker, gas stove, oven etc. Specifications: Material: zinc alloy Diameter:4 cm/1.57 inch Aperture 6mm/0.24inch Angle: Right angle/0 degree colour:Silver Package Contents: 4 * Gas Stove Knob Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.