A high-tech vibrating bra promises to make breasts bigger and perkier, within just seven days.

The Serbian inventor of the Enhancebra, or E-bra, is a former engineering student. He claims that his device can permanently increase the size of a woman's breasts by one cup size without the need for surgery.

He says that the vibrating bra works by increasing blood flow to the breasts and improving circulation.

He said, 'It is a natural process that increases the blood circulation that is feeding the breast… We had a theory about how we could manipulate the human body to manipulate the tissue and muscles. We believe we have found a solution to do this and in this case we use it to enlarge and enhance a woman's breasts.'

Now, after 14 successful trials on women around the world, the garment is set to be mass-produced for the first time. The e-bra will reportedly be sold from the website, enhancebra.com for $199. It will be available to women in the US and the UK.