How can you improve on something as simple as a dumbbell? Well, building in the ability to change the weight of a dumbbell quickly means you only need one set of weights to train different muscle groups with exactly the right amount of weight (more weight for bigger muscle groups like the legs and smaller amounts for areas such as your shoulders). The smooth, slick exterior conceals a clever combination of weighted segments that you can add or remove to create a wide spectrum of resistances.

Features:

• 2 x variable weight dumbbells
• 1-4kg
• Each weight contains 4 x 0.25kg weights, 4 x 0 .5kg weights and 1 x 1kg handle