because they can't tell. there's kind of like where there's shaving marks? >> it looks life-like. the cosmetic cover color-matched to her skintone, down to the freckles and creases on her heel. she now has four prosthetic legs. >> this is my waterproof leg. i wear this one in the shower. >> this one for running, another for flats, another for high heels. >> i kind of feel like my old self again. >> reporter: she had no idea she would get this far, under aviva drescher walked into her room. >> she walked in with high heels and skinny jeans, and i couldn't tell which leg was real and which wasn't. it really helped me think i'm ready to do it. >> reporter: of course the priority is how will i walk? but beyond that, it's sort of a female rite of passage. how am i going to feel pretty?