Crafted from PU foam material, these mini volleyball stress balls are designed to provide a comfortable grip and durability. Featuring vibrant sports-themed designs through heat transfer printing, they are for stress relief at the office, home, or during travel. Their compact size makes them ideal for kids and adults, offering a fun way to improve finger dexterity and hand strength. Features -Color:White -Material:PU -Size:4.00X4.00X4.00cm/1.57X1.57X1.57in -Portable design: the mini bouncy balls are lightweight and portable, making them for stress relief at the office, home, or while traveling -High elasticity: made from pu foam, these stress relief balls provide a comfortable grip and durability without deformation -Vibrant sports patterns: the sports patterns on these mini volleyball stress balls add a touch of energy and excitement, enhancing your mood -Durable print: the solid structure combined with heat transfer printing ensures that the patterns on these mini squeeze sports balls remain clear and vibrant over time -Size: with a unique 4 cm mini size, these small foam volleyball stress balls are easy to grip, making them ideal for both children and adults to improve finger dexterity Package list: 20 x mini sports ball