The smiley face ball is made of solid but soft material, which symbolizes positivity and dynamism. This material is a generic term for products made from a new synthetic material between plastic and rubber, which is more resistant to wear, hydrolysis, high temperatures, and even breathability than other rubber and nylon products. The ball is soft and easy to squeeze, and immediately regains its original shape when you let go of it, making you fall in love with squeezing. It can be customized with an exclusive logo and is well-deserved as a promotional item for corporate events. Made from pu material, measuring 2.76 inches, this custom smiley face stress ball. Usage Scenarios: Office supplies, school stationery, corporate promotions, trade show giveaways. Tailored branding: Supports logo imprint and design personalization. Product Highlights: Portable, durable, practical for daily use.