I've used modern gadgets and gadgets my grandma used when she was a girl, and this is the best! When my husband isn't here to help me open a jar or bottle, I pull out this wonderful gadget and the lid comes off?I don't have to strain my hand or wrist. I'm not worried about breaking glass. I put the lip of this on the edge of a jar or bottle and then slide the lever up close to the other side of the lip. Then I squeeze the handle and twist my right hand counter clockwise (my left hand is holding the jar/bottle)... And Pop the jar / bottle is open!!! Eazy, Peazy! It's an excellent quality product, well constructed and I believe will last! ***I've used mine for a while now! And, I'd happily give this as part of a wedding gift or at a house warming party! My Dad's, when he can't get a jar open, uses this and he is 85 years young!I highly recommend this product. It arrived on time and was well packaged.I was given one of these as a gift. Best tool I have found for my kitchen in a long time. Having a broken wrist and subsequent arthritis in my hand, opening jars is really hard, UNTIL I received this tool. It works on every sized top from juice bottles to large pickle jars. I loved the one gifted me so much I went Amazon to find one to send to my sister-in-law. She loves it too. I highly recommend this.My husband and I are in our late 70’s and opening jars is often very difficult or impossible without help.I searched different tools and videos and decided this was the one. My husband did not think it would work. It is amazing- easy to use and works every time. Look at videos and you will see how easy it is to use.My husband loves it. We plan to buy a few for Christmas presents.This jar opener was rated #1 by America's Test Kitchen. When it arrived in the mail, I wondered whether ATK had made a mistake, as this thing feels like it cost 10 cents to make. But ATK was right--this baby works on all kinds of jar lids. It's not hard to use this opener, although it takes a couple times to get the hang of attaching and holding the opener to the lid. With minimal pressure, the jar lid will turn. That's great, given how tight manufacturers are making lids these days. One thing to remember--after you've attached the opener to the jar lid, turn the opener COUNTER-clockwise. If you turn the opener clockwise, it won't turn the jar lid.I love these! I have gifted these to friends & family. People with arthritis or hand problems or someone like me that doesn’t have the strength in my hands like I used to, find that using these make opening up jars a breeze! These are a must have!My mother and grandmother both had one when I was growing up. There wasn’t a lid they couldn’t open. This is an oldie but goodie! Perfect gift that anyone would probably not have one or even know they exist!!!Both my wife and I find this a lot easier to open spaghetti sauce jars that I do nearly daily. It doesn't take much thinking and is pretty intuitive to use. It gives you a LOT more leverage to open jars than you would just grabbing with your hand. And it holds pretty well too. It still requires two hands, one to hold, and the other uses the tool as a lever, and it requires about 90% less effort. Before getting this tool, I started to get shooting pains in my wrist when the jar lid finally came loose and started to seem like I might be causing a repetitive injury. A lever is based on physics, and allows you to spend much less effort turning something by applying force further out from center, similar to a lower gear on a bicycle takes less effort to go up a hill, or what any wrench actually does to a bolt. It seems very sturdy and well made.To use, slide open enough and just loosely set it atop the jar lid. Then slide the handle towards the to take up they slack and the latch under the handle will fall into place at the closest hole, but doesn't need to be tight at this point. Squeeze the handle with one hand to close up any gap and let the two teeth grab onto the lid, even if it digs in a little bit and keep holding. Then turn the lever with that hand while holding the jar with your other hand, and it should come lose a LOT easier than with just your hand. If you want to spend more effort aligning it and less on squeezing the handle, it might be possible to set the latch under the handle into the hole that perfectly sizes for your jar lid (if it matches), and when put on the lid it will hang on by practically by itself.However, it is still harder on sealed jars that haven't popped the lid yet, but easier than by hand. For an un-popped sealed lid, I find the using the tight pin position closest to the lid and squeezing enough to deform the lid slightly helps to break the seal, and then it turns easily. It does leave the two teeth marks in the lid, which still works fine to close and store a partially used jar in the refrigerator. But I wouldn't use this on any lid you want to keep forever. This is meant for a disposable jar that you would use up and recycle eventually, and ok to deform the lid slightly. If I had one complaint, is that the rubber sleeve on the handle easily slips off so I pay a little attention to not pull out on it in use.Many jars are so hard to open, this is a big help!This product easy too use and we'll made.Have one already but wanted for a Christmas present so know its great.This device works so well for my arthritic hands that I ordered a second one for my 85yr old mother who has a hard time opening jars as well. This unit easily fits many different sizes of screw top bottles and jars. From the basic 500ml bottle of water to a larger jars that are so stubborn. I will recommend this to anyone who has the need for some added strength when opening tough jars and caps. Pictures included show the maximum it will open up to fit a lid to the smallest.I have one that is at least 20 years old. Looks identical but this one has no where near the same grip as my old one. I find it very difficult to open anything with it.Wanted a second one to leave at my son’s to make it easier to open things there. Not sure it is even worth taking it there.Muy buen producto para lo que fue diseñado, sin embargo cuidado al lavarlo, asegúrate de limpiarlo y secarlo muy bien ya que se oxida en cuestión de nada con unas cuantas gotas de agua. Si tuviera un cromado de mejor calidad lo haría uno de los top ten kitchen gadgets