can i excercise with weight plates for my bicep(iam male 20 years) I HAVE only weight plates of 2 each 5 pound,AND THEY ARE PRETTY small 4inch dimeter so can I do any exercise for bicep,for mass and def.if u think about dumbell I don't got it ,for some reason I can't buy but what I ask give me that answer.any link for weight plate exercise thanks