About Stuffing : The clear balloons are ok for stuffing confetti , feathers , small latex & mylar balloons and other small toys , not suggest for rose flower , dolls . The transparent balloons are good replacement for LED light up sets , good decorations for happy birthday, wedding , baby , graduation parties | Pack & Shape : Include 15 pieces clear transparent balloons . The clear balloons are pre stretched by machine , can better to protect your hands and nails . The bobo balloons shape are not complete round before inflating , and maybe a little oval shape after inflating , but usually would be round up after 1-2 hours later (please tie the inlet port tight and inflate the balloon till it round , it will last for days ) | Size & Inflation : The bubble balloons are about 7.8 inch before inflation , can inflate diameter to 14.9 inch big . We can inflate with air pump , or helium to make it float up . | Material : This round clear balloons are made of PVC, a kind of durable plastic, high quality, Non-toxic, high-elastic and environment friendly |