Mini Exercise Ball for Yoga, Pilates, Barre, Fitness-Stability Ball Accessories for strengthening core Exercise TONE YOUR BODY with HolaHatha Mini exercise ball. It can help you to tone your core strength, legs, abs and back rehabilitation. You will receive our instruction manual of different exercise suggestion. ANTI-BURST AND 6P FREE MATERIAL that is free of six common harmful phtlalates :DEHP, DBP,BBP,DINP,DIDP and DNOP. INFLATE IN 20 SECONDS- it comes with a clean straw which you can use it to inflate in short time. ( just like blowing a balloon.) MORE SIZE TO CHOOSE- HolaHatha offered you 3 sizes: 7.5-inch/ 10-inch/ 12-inch for different workouts. Check with our size photo to meet your demands. 100% REFUND GUARANTEE-any problem within 90 days will all have refund. This Fitness Exercise Ball can be enjoyed and used by anyone, from children to the elderly. This Fitness Exercise Ball can be enjoyed and used by anyone, from children to the elderly. This Fitness Exercise Ball can be enjoyed and used by anyone, from children to the elderly. It is helpful with the type of exercises I need: balance, strength, etc.  I took it everywhere I went. LOVE IT I ordered this ball to use for exercises, specifically to squeeze in between my knees.  I&#039;ve used it for several days now, and it withstands a lot ! Holds shape and soft enough for Pilates. I&#039;m very happy with this ball.    Great for strengthening. Exactly as expected.