375cc uhp Mentor implants have a diameter of 10.5cm and a projection of 5.5cm. You can check the other cc’s here xxx
http://www.mentorwwllc.com/pdfs-global/breast/EN/adcards/siltexroundgel-cohesive1.pdf
Looks like you have to be careful as the bigger the cc’s you go, the wider and higher they are, so you could end up with serious side boob and projection!
“Once you know the width of your breasts you can now consider the dimensions of breast implants that would be best for you- An implant slightly narrower or about the same width as the width of your breast is usually a good choice and should fit you well. So, if your breasts are 12 cm wide, you should choose a breast implant with a diameter of about 12 cm. If your implant choice is within 1/2 to one centimeter of your breast width, you should do well. But, it is best to select an implant that is slightly narrower, rather than wider than your breast. So, in the case of a 12 cm wide breast, an implant with a diameter from 11-12 cm should be satisfactory.”