Features: -Lightweight, cheap, and soothing. This stress-relieving brain ball is easy to squeeze, has a cute appearance, attracts eyeballs, and attracts users with bright colors. -Use it for Science Fair projects or medical demonstrations for elementary school students. It is a flexible plastic lamp that is sufficient to attach to a foam board. -Our flat brain ball will become a hot topic nowadays, everyone will love this topic and ask where your brain is. Distribute them to diners or be the darling of Halloween parties. -Throwing, catching, rolling, and bouncing are very happy because the irregular shape makes them bouncing and rolling in unpredictable directions, which is difficult to anticipate and eye-hand coordination.