Want to lose weight and tone up when using your Nintendo Wii console? These dumb bells from Riiflex could be just the thing.

The 1kg weights each feature a slot that the Wiimote and Nunchuk from a Nintendo Wii will fit snugly in, ensuring the intensity of your Wii workout is increased.

The dumb bells, which come in the Wii's distinctive lime green colour, are made from a non-slip material. Riiflex says it has designed the dumbbells to feel just like gym equipment.

The Riiflex weights can be used with a number of fitness games for the Wii, including Wii Fit, Wii Fit Plus, EA Sports Active, My Fitness Coach, New U and The Biggest Loser.

Riiflex said it plans to expand the weight range of the dumbbells in the near future.

The Riiflex dumbbells are available now from John Lewis stores or from Play.com, priced at £24.99.