A revolution in dumbbell training - once you\'ve used these dial-tech dumbells there will be no going back to traditional dumbells as they are so easy to use. Just turn the dial and pick up the weight - it really is that simple! They are incredibly space efficient and versatile, replace a whole rack of traditional dumbells with just 1 pair of York dial-tech dumbbells. The weight increases in 2.5kg increments, so you can select 2.5kg, 5kg, 7.5kg....all the way to 17.5kg for each dumbbell.