Hey, check out this awesome value pack - you get 10 inflated wobble cushions AND 2 portable needle pumps! These things are about 13.4 inches across and you can inflate them to your preferred firmness. They come in a bunch of colors too. The coolest part is the double-sided design - one side has this spiky, hedgehog-like texture that really helps with traction and stability, while the other side has gentler massage points that give you a low-intensity massage. It's great for increasing stability and anti-slip performance, plus the back massage points can soothe muscles and help with body awareness. The pump has this removable needle that stores inside the handle (so no accidental punctures during shipping - smart!). What can you use these for? Well, pretty much everything! They're amazing for exercise and fitness - think yoga, core strengthening, balance training. But you can also use them as seat cushions to help with back pain and improve your posture. They're perfect for both men and women, and can help with blood circulation, coordination, and even giving you more energy. Use them at home, the gym, yoga studio, office... even kids can use them to help stay focused while reading or eating. Such a versatile tool for anyone looking to improve their core stability or just add some movement to their day!