Features: Safe and reliable material: The duck gifts stress relief ball is made from soft TRP rubber, ensuring safe use and enjoyable haptic experience. It provides a soft, squeezable texture that instantly helps to relieve stress and relax the mind. Inspirational and fun: These packages not only serve as meaningful gifts but also bring joy and laughs. The adorable duck stress relief balls add an element of fun. It's more than a gift, it's a mood uplifting tool. Specifications: Material: TRP soft rubber Color: yellow Size: 1.38 inches/ 3.5 cm Package includes: 24 x Stress ball 24 x Gift box Notes: Manual measurement, please allow slight errors on size. The color may exist a slight difference due to different screen displays