Review on 1472°F Heat Resistant BBQ Gloves - Comsmart Silicone Non-Slip Oven & Grilling Gloves For Barbecue, Cooking, Baking, Cutting by Jason Bellman

You can hold something hot for longer than if you didn't have any gloves on, but at 400 degree F oven temperature, you have 10 seconds to pick it up and put it down.

That's plenty of time under normal circumstances, but when you've got a holiday dish and your kitchen is crowded with people and you need someone to make a space because your countertops are full of other holiday dishes, you quickly run out of time and need to put your dish back into the oven to keep your hands from burning. Once the countertop has a space for you, you can then safely pick your hot dish back up and put it on the counter (or where ever).To make a short story long, these don't insulate you from heat very well.