These wobble cushions are seriously fun and actually really useful for both kids and adults! You get four different colored cushions - green, yellow, pink, and red - plus a handy pump to inflate them to your preferred firmness. Each one measures about 14 inches across and can inflate up to 3 inches high, giving you that perfect unstable surface that makes your core muscles work without you even realizing it. The raised bumps on top aren't just for looks - they provide grip so you don't slide off, plus they give a nice little massage effect while you're using them. Made from durable PVC material, these things can handle regular use without popping or losing air. What's really cool is how versatile they are - use them as wiggle seats for fidgety kids in classrooms, for yoga and Pilates exercises, or even just as an active sitting option at your office desk. When you're done, just deflate them and they pack down flat enough to slip into a backpack or gym bag. They're especially great for sensory-seeking kids who need that extra movement while sitting, but adults love them for adding some challenge to their workouts too. The four-pack means you can have one for home, office, classroom, and gym - or share with family members. Seriously, if you want to improve your balance, strengthen your core, or just give kids a productive way to fidget, these wobble cushions deliver both fun and function in one affordable package.