They do exactly what you expect. 20kg dumbbells you can snatch, curl, press, carry, squat, use as a door stop, or whatever else floats your boat. Hex dumbbell heads mean they aren't going to roll around your garage/gym when you put them down. Handles are thick and comfortable and the knurling is adequate but won't bite. The only downside to be aware of is these will be quite oily and smelly when they are new so don't put them on carpet or any other surface that you don't want to have to clean oil stains off. Otherwise great, and a fantastic price.