Description:【Product】: This is gas range change knob, like minded for gas and liquefied fuel stoves. These knobs are fundamental kit for your tabletop stove. 【Material】: Made of zinc alloy material, those cooktop knobs are sturdy and designed to withstand long-term use. 【Product Size】: Cooktop knob measures 45*19mm, making them the perfect size for most regular fuel stoves. 【Easy to install】:This burner knobs set up very simple, you may set up it with out professional skills, saving time and energy. 【Function】: These fuel stove knob switches are designed to ignite your stove with ease, providing a snug use at any time once you cook. Specification:Material:Zinc Alloy Size Chart:4/1 Package Includes:2 PiecesGas Stove Knob Switch Note:Please allow slightly errors 1-2cm versions because of guide measurement.