HIGH QUALITY MATERIAL : Gas range knobs manufactured from nice Aluminum Alloy, ultra abrasion resistant, sturdy and durable. EASY TO APPLY : 68mm included hole for simple installation, tender floor is simple to wash and cozy to grip. UNIQUE DESIGN : The mark on the button will inform you the right course to adjust. GOOD PROCESSING : No sharp edges. With steel shine, small and light, straight forward and modern design, concise and stylish. WIDE APPLICATION : Perfect gadget for relations or restaurant kitchen, broadly used for stove, fuel stove, oven, etc. Angle: appropriate angle / 0 levels Hole diameter: 8mm Size: three Colour:silver Material:Aluminum alloy Package Contents: eight x Gas Stove Knob Only the above equipment content, diversified merchandise will not be included. Note: Light mirrored image and assorted displays can cause the color of the item in the photograph somewhat diversified from the real thing. The length allowed error is +/- 1-3cm.