This yoga stability ball is built for controlled movement, seated use, and balance-focused exercise in home, studio, or light commercial settings. The PVC construction feels thick and supportive with a lightly textured surface that helps reduce slipping during use. Once properly inflated, the ball maintains its shape well for daily routines, stretching, and seated activities, with firmness easily adjusted over time. Designed to support a wide range of users and activities, it works equally well for yoga, Pilates, balance training, floor exercises, or use as an alternative seating option. Multiple size options allow users to select a diameter that matches their height and intended use. Inflation is straightforward, with included accessories to handle setup and occasional air adjustments as needed. Specifications: Material: PVC Dimensions: S: 21.7" diameter M: 25.6" diameter L: 29.5" diameter Weight: S: 1.32 lbs M: 1.76 lbs L: 1.98 lbs Sizing: S: recommended height 4 ft 11 in–5 ft 3 in M: recommended height 5 ft 3 in–5 ft 7 in L: recommended height 5 ft 5 in–5 ft 9 in Usage: Indoor exercise, balance training, seated use, yoga, and Pilates routines