It is a life saver. I have arthritis in my hands and it is hard to open different products. This worked perfectly. It would open a jar with no problem. Would recommend this to everyone. Performance Works very well. Very easy to use. Durability It is very durable and very strong suction so it opens jars very easy. Design It is very easy to use. You do not have to use strength. All you have to do is hold it down to open a jar.