Hats off to your marketing campaign! Personalize your mortarboard hat shaped stress ball for your college, graduate school or any other product of service to your most recent graduates. Theyre a great way to work yourself into anyones daily routine and increase your bottom line! Just add your logo! Safety tested and intended for adults or for general use by consumers of all ages. Not intended for children under three years old or for pets. Mortarboard Hat Stress Ball Made from pu material, measuring 2.75 x 2.75- x 1.75- this custom mortarboard hat graduation stress ball.