Who Needs Them? Kids, students, office workers, elderly, designers, thinkers. Stress Relief Toy: It is very needed for children with learning pressure, or adults who are under pressure at work, or designers and thinkers who often think. It can be taken out at any time, press two buttons, comfortable operation, promote tactile stimulation, help you quickly restore calm and focus, and the best pressure relief toy. Young or old, this unique little keychain provides endless hours of fidget fun! The frame is made of strong, high-quality plastic - ideal for rattling around in your pocket or purse - and the two colorful buttons are made of 100% silicone. One touch and your fingers can't stop pushing, poking, and popping!