Toma Rainbow Brain Stress Ball is a great way to promote your company or organization. Made of soft PU material, this stress reliever will slowly return to original shape after repeated pressing. Bright rainbow color design fits for decorate your surroundings with an eye-catching effect. Customize with your logo or message on front/back/side to make a great science gift. Perfect for office, home and camping. 3 days/24 hours rush for 1 color imprint available upon request.