No weights but a burn like fire!

Work whole shoulder area including the thumbs from too much texting-Stand arms to the sides, parallel to floor, straight elbows, tight fists thumbs pointing up then reach/lengthen your fists to the sides even more & hold for 60 sec, then rotate thumbs down as if your watch face is facing forward for 60 without arching back or letting your shoulders rise pulling shoulder blades down, I guarantee you will feel it!