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.