A wildly-fun and new way to relieve stress, this popper stress ball is great for people of all ages. Go ahead and pop it! You can't resist! Features: Made of squeezably soft silicone. Relieves stress and helps with focus. Great for people with sensory issues. Interactive pop bubbles regain their shape with each squeeze. *The variety & tone of white vs blue for Blue Swirl will vary greatly from item to item. It is recommended to select an imprint color that will stand out against dark blue or white.