EASY FOR ADULTS: Enhanced safety design makes it difficult for babies to figure out and open, but easy for adults to open/close with one hand. Prevent children from turning on stoves and ovens, which can cause fires or release harmful gases. UNIVERSAL SIZE: Upgraded size to completely cover more different shapes and sizes of gas stove knobs. Fits gas stove knobs and oven controls with an inner diameter of less than 2.4 inches. HIGH TEMPERATURE RESISTANT & CLEAR VISIBILITY: Made of hard PC material, high temperature resistant, ensuring the quality and durability of the gas stove knob covers. The ultra-clear stove knob covers will not block the view of the temperature control mark when closed. CHILD SAFETY KIT - EASY TO INSTALL: Package includes 5 childproof stove knob covers & 1 oven lock child safety. Comes with 5 pieces of strong adhesive, you can choose to use the adhesive to attach the gas control covers to the stove to prevent the cover from rotating. It will not cause any damage to the stove surface and the adhesive pads can be easily removed without residue. APPLICATION SCOPE: Measure the stove knob before purchase, otherwise it may not be usable. The distance from the center of one knob to the center of the next knob should be 3 inches (≥76 mm) or more. The height of the gas control should be less than 1.9 inches (≤48 mm). The diameter of the gas control should be less than 2.4 inches (≤61 mm).