Want bigger boobs but too scared to go under the knife? We’ve got some great news for you.

A new “miracle” vibrating bra that promises to increase your boob size in just seven days is set to be mass produced after successful trials around the world.

Inventor Milan Milic, 33, says his “E Bra” not only enlarges breasts, it also makes them perkier.

Women only have to wear the jiggling bra for five minutes, three times a day for a week.

Ladies in America, Europe and China have trialled the bra under the eyes of doctors and have experienced growth of around 3.5 to 4cm – about one cup size.

And the bra has even helped make uneven boobs more symmetrical.

Milan’s girlfriend, Jelena Sabic, 26, who was the first to test the bra in 2012, has gone from an A cup to a D cup after using the incredible invention for three separate seven-day sessions over the past five years.

The ex-engineering student, who lives in Serbia, designed the bra after his partner told him she wanted a boob job but was afraid of going under the knife.

He thought the first prototype of the bra would take about two to three months to work – but the couple were shocked after Jelena’s boobs grew in just a couple of days.

Now the lovebirds have patented the design, got investors on board and the E Bra is about to go into mass production.

Customers can now pre-order the bra on their website – which retail for $199 (£150).

Milan said: “The science behind the bra is increased blood circulation – it works on the same principle as massage but much much faster. We have finally finished all the research and we have the final fourth generation of E Bra.

“We have done tests on the same women after two months and found it is even possible to go up a father size if you use the bra a second time.”

The ex-security guard added: “We have also helped one woman who had one breast much smaller than the other to correct the symmetry by using the bra on just one side.

“All the women have have an increase of between 3.5 to 4cm – except in the case of the woman when we were trying to address the symmetry and that was 2cm. The breasts also look rounder in shape, uplifted and closer together.”

“The results are permanent – even five years Jelena still has the same size – but the shape can slightly change due to gravity. There are no side effects except that the girls want to use it again,” he added.

In 2015, a trial in America saw 49-year-old Sabrina go from a B cup to a C cup after wearing the bra for just 15 minutes a day for a week.

She was certain that the increase was all down to the bra and nothing to do with weight gain or her month cycle.

Sabrina said: “I definitely feel like I fill clothes a little better and it feels good. If I give somebody a hug I have to accommodate for them – it feels different and I’m just not used to them yet. I’d love to try the bra out again to see if they will go even bigger.”

Dr Salzhauer, a Florida-based plastic surgeon oversaw Sabrina’s test and confirmed her breast had enlarged.

Women are advised to wear the bra for five minutes, three times a day for seven days – and they must start seven days after their period.

But it is not recommended for use during illness or when on medication and there should be a two-month period before the bra is used a second time.

However, the handy bra does not work after a flight – Milan recommends women wait at least 10 days after they have landed before they use the E Bra due to changes in pressure.