After using my initial dumbbell set, I realised I would need to up the weight every few months, so decided to go for the adjustable set. They arrived promptly, well packaged and as described. A simple turn of the dials and you can move from 10kg, to 16kg, to 24kg within seconds. It seems very well made, has a good grip and I am so pleased i went forward with this purchase. Well done Northern Gym, another bit of quality kit!