Barbie Arms

Hi everyone i don't know where to start and how to say this but i have this kind of insecurities and also to achieve this and it is trend from this generation na ma achieve yung tinatawag na barbie arms, or it defined as toned arms and it's giving off the elegant looking, matagal ko na talaga tong gusto ma achieve but, how ? The more I exercise the more din na tinatamad akong gawin yung mga activities to achieve it. Have you ever experience that also ?