Pack Include :10 pack Wide Mouth Clear Bobo Balloons ONLY . The opening size is 3.86inch , extra long tail length , easier to tie knots, the wide mouth is specially designed for stuffing elfs ,dolls ,rose flowers, teddy bears....the balloons can also work with balloon stuffing machine , good choice for DIY (PLEASE DON'T FILL INTO ANYTHING SHARP , IT IS VERY IMPORTANT TO TIE THE PORT TIGHT, PLEASE REFER TO OUR VIDEOS FOR TWO WAYS OF TIE)Large Clear Fillable Balloons: Diameter can be inflate up to181inch big, it can be inflate with electric or hand air pump or helium. please inflate the balloons smaller when temperature is below 59 (Mouth blowing is not allowed) .Pre-Stretched Version to protect hands and nails: Bobo balloons usually need great strength to stretch by hand , so we stretched all the crystal clear round balloons by machine before delivery, you can inflate it whenever you need the balloons for party decorationClear Bubble Balloons Material : This big crystal clear balloons are made of TPU, a kind of high elastic plastic, high quality, Non-toxic, high-elastic and environment friendlyOur Transparent Balloons enjoys 100% MY BACK Guarantee, If you are not satisfied your goods, we can 100% refund you or send you a new pack if you prefer .