Soft material: Made of a soft outer layer and high-density elastic filling, these sticky cubes provide a satisfying tactile experience. The gel stress balls retain their shape even after frequent use and can be washed to maintain freshness for a long time. Relieve emotions: Provide effective stress and anxiety relief for adults and children, enhancing concentration while suppressing fidgeting or nail-biting behaviors. It is an ideal sensory stimulation toy suitable for helping calm down in high-pressure situations. Size and portability: Each stress ball cube has a size of 2.17 inches, ensuring a compact and portable design for easy carrying. It is an official small block for relieving anxiety when carried around. Durability design: Features a slowly rising ice-block elasticity, in colors of bright pink, blue, and green. The reusable square stress cubes help control habits and do not disturb others. Multi-functionality: Suitable for all age groups - from children to the elderly - these sticky cubes can be used in offices, classrooms, travel, or therapy settings. It is a multi-functional stress stimulation toy for educators, athletes, and professionals. Size: 4*5.5 cm / 1.57*2.17 inches