Brain Stress Reliever Ball. Size: 3" w x 2 1/4" h Product Size:3"w x 2-1/4"h Imprint Area(s):1.25" x 1.25" (Top) Shipping Weight:10 lbs. per 100 Product Material:Polyurethane Make the smart promotional choice with customizable Brain Stress Relievers from China Wholesale Town! These brain shaped stress relievers put gray matter to good use. Great for promoting education, science, medicine, museums, and more, these brain stress relievers will help your customers control their medulla oblongatas and decompress in the midst of their daily stressors. Personalize your Brain Stress Relievers with your logo or slogan for a great science gift that will get everyone thinking about your brand.