Meet the UB Toner: a handy tool that works on your upper body, upper arms, and bust lie. You will just have to do 4 simple exercises for 10 minutes a day to start seeing results. The UB Toner is portable and lightweight. It provides you with 18 pounds of resistance.
There are other exercise tools that work your upper body harder, but if you are looking for a portable solution, you should give the UB Toner a look.