Round off your promotions with these imprinted stress balls! Relax you mind, ease stress and strengthen your grip with these 2.5″ stress balls made of polyurethane material. Reliever your stress and anxiety by squeezing and playing with these balls, and they’re also great for exercising your fingers, wrists and forearms. Choose from our variety of colors and customize each ball with a one-color, one-location silkscreen imprint.