Includes: 8 pieces gas hob knob protector. A premium black look that complements your kitchen environment.Material: The gas hob guards are made of high quality PP for long life and easy cleaning to avoid grease problems.Easy to install: Simply remove the switch from the hob, remove the tape from the hob knob cover, secure it under the knob and reinstall the switch. It can be assembled without tools. Wide range of applications: The gas hob cover extends the life of the on/off button and prevents pets from accidentally opening the gas hob. It is generally used on stoves, gas hobs, ovens, etc. Note: The data is all manual measurement, please allow 1 - 3cm error, due to the difference in light and display, there will be a certain color difference, depending on the physical object received.