Eyelash & Eyebrow Growth Serum - natural Eyelash Growth Enhancer & Brow Serum DOUBLE BUTTON DESIGN--- The double button design with the setting of resistance makes the stove knobs hard for babies to open, but simply pop press the cover to access the knob when it's time to cook. These covers keep children from playing with dangerous stoves, helping prevent accidents before they can happen. LARGE UNIVERSAL DESIGN---The stove knob covers fit any standard size stove knob with 2.95" in external diameter, 1.46" in inner diameter and 1.89" in height. SAFE MATERIAL---The clear view stove knob covers are made of PC and attach with 3M adhesive. EASY TO INSTALL---Install the oven knob covers with 3M Heat-Resistant adhesive, no drill and tools needed, you can install and remove them within seconds. And don't worry about your stove, the adhesive leave no residue and won't scratch your oven. 100% SATISFACTION GUARANTEE---Please feel free to contact us whenever you need help. We guarantee 30 day returns and money back, 1 year warranty with lifetime service.