1.Unique Moonstone Texture & Glow-in-the-Dark Design: This stress ball features a delicate moonstone-like surface that feels smooth and satisfying to squeeze, plus a vibrant glow-in-the-dark effect—perfect for using day or night. The 6.3cm size fits comfortably in hands of all ages, and its eye-catching appearance adds a fun, trendy touch to your fidget toy collection, making it stand out from ordinary stress balls. 2.High Elasticity for Strong Rebound & Fun Play: Crafted with premium high-elastic materials, it offers excellent bounce and rebound performance—squeeze it firmly, and it quickly regains its shape; toss or 甩 (swing) it with the attached string, and it bounces back smoothly without losing elasticity. This dynamic rebound not only provides fun playtime but also helps release tension through repetitive, rhythmic movements. 3.Wrist String for Secure Use & Portability: Equipped with a durable, adjustable wrist string that keeps the ball attached to your hand—no more worrying about dropping or losing it while using it on the go. Whether you’re at work, school, commuting, or traveling, you can easily swing, squeeze, or bounce the ball anytime to relieve stress, and the lightweight design won’t weigh your wrist down. 4.Effective Stress & Anxiety Relief: As a fidget toy, it’s designed to help reduce stress, anxiety, and restlessness. Squeezing the soft yet elastic ball stimulates hand muscles and distracts from negative thoughts; swinging it with the wrist string provides a calming, repetitive motion that eases mental tension. It’s suitable for adults dealing with work pressure and kids managing hyperactivity, making it a versatile stress-relief tool. 5.Safe & Durable for Long-Term Use: Made of non-toxic, BPA-free materials that are safe for both adults and children (ages 3+). The sturdy casing resists wear, tear, and punctures, even with frequent squeezing and bouncing, ensuring long-lasting use. It requires no batteries or charging for the glow function (simply absorb light first) and is easy to clean—just wipe with a damp cloth, making it a low-maintenance, reliable stress-relief companion.