MATERIAL: Made of solid rubber,resistant to twist; dishwasher safe, easy for you to clean up the grease, oil, or stains on the pad surface; diameter: 12.4cm/4.88inch FIT FOR MOST SIZE HANDS JAR GRIPPER: These rubber pads is constructed with a textured gripping surface ,used to open most size tough jars and bottles, and remove the lid without having it slip away or cut your hand, like cookie jar,jam jar, bottles, etc. GREAT FOR WEAK HANDS: Rubber jar gripper openers work great for children, women,seniors, they provide independence, Whether you're struggling with arthritis trying to open a jar of jelly or a mechanic struggling with a stuck valve, the quality rubber jar opener simply works. Add bright&beautiful colors for your home& kitchen A GOOD HOME HELPER: These rubber jar grippers not only can be used as botte openner but also can work as round kitchen coasters, anti-scald pads or anything stucked that needs great friction, also great for wrapping hot handle/lids on the stovetop