These are heavy thick gloves to be used handling hot items. I tested them by holding a hot skillet after grilling a ham and cheese. No problem, no skin left on the frying pan which is always a good thing. I then unloaded the dishwasher during the heated dry cycle. I don't know about your dishwasher but you do NOT want to grab the dishes out of mine while it is in the heated dry cycle. Again no problem, no burns and no dropped dishes. My final test was to put a 200 watt incandescent light bulb in a lamp and let it cook for 30 minutes. I then removed the bulb using the glove. I have no way of measuring the temperature of the light bulb but I absolutely would not grab it without protection. The glove allowed reasonable dexterity with apparently fool proof protection.
My negatives are that they are cumbersome however not nearly as cumbersome as pot holders. If your hands are damp, you will have a hard time getting the glove to slide on. After I thoroughly dried my hands, no problem with getting the glove on. I do use baby powder for rubber gloves when I need to squeeze them on, in this case flour in the kitchen would work just as well. Again with dry hands it wasn't a problem getting the gloves on.
The vendor suggested you could use the gloves to remove lids, I had no lids to remove but I do feel they would work for that application.
I did received the gloves gratis and was asked to review them. I received no compensation for the review but I was allowed to keep the gloves. If you read my work, you are aware that I can on occasion be caustic even with or perhaps especially with free stuff. This review is my honest opinion. There are times where I wish I would have had these gloves and I suspect my use of burn ointment will decrease with owning them.
If reviewing a product, it may have been received free of charge. That will NEVER have a bearing on my recommendations.