Adjust the weight of your KFit trainer to either four or five kilograms to make the very most of every work out. Cleverly colour coded, the four kilogram weights are blue whilst the five kilogram ones are orange, so you'll always be able to tailor your work out quickly and easily. Increasing your weights when your fitness has improved will optimise your work out and build muscle, helping to consistently advance your fitness levels. Specifications 4kg interchangeable weights 5kg interchangeable weights Colour: Blue / Orange