【Upgraded Stove Knob Covers】: Strong heat-resistant High-quality PC material, The new double button design for easy one hand opening, The package contains 6 pack childproof stove knob covers and 6 pieces strong adhesives, enough for your daily replacement. The videos for this product on the product page, you can't miss it. 【Application Range】: Please measure the stove knob before purchase, otherwise it may can not be used. The distance from center of one knob to center of next knob should be 3"(≥77mm) or more. The height of gas knob should less than 2.1"(≤52mm). The diameter of gas knob should less than 3"(≤77mm). 【Scientific design】: The new double button design, parents can open easily, but The new unlocking method with a improved safety factor makes it hard for babies to open, helps preventing accidents before they can happen. 【Universal Size】: The size upgrade allows the child proof stove knob covers to fully cover more different shapes and sizes of gas cooktop knobs. the size has been upgraded to fit gas stove and oven knobs with an inner diameter of less than 2.56 inches width and 2.1 inches depth. 【Premium Material】: Our stove safety knob covers are made of Strong heat-resistant High-quality PC material, heat-resistant and high-temperature resistant. Oven knob covers for child safety have good heat resistance. The widened short design is strong and can be used for a long time.