Features: OOTDTY fresh and superb for most fuel cooktops with knobs, shaft diameter is 8mm/0, and built-in holes are easy to install. The markings at the knob let you identify the correct adjustment direction. The comfortable surface makes it really easy to wash and comfy to hold. Small size and light-weight weight, right for emergency storage. Good accent for home or eating place kitchen, also used in cooker, gasoline stove, oven, Specifications: Material: Metal Size: Approx. 4x2mm/0 (DiameterxHeight) Installation Hole Distance: Approx. 8mm/0 Package Includes: 1x Stove Knob Note: 1 allow 1-2cm mistakes thanks to guide measurement, just be sure you don't mind earlier than you order. 2 to the adaptation between different monitors, the image may not replicate the actual shade of the item.