Party Balloons 12 Inches Rainbow Set (100 Pack), Assorted Colored Party Balloons Bulk, Made With Strong Latex, For Helium Or Air Use. Fiesta Birthday Balloon Arch Supplies, Decoration Accessory 060B

I tested blowing up a water balloon compared to these and the results are similar. Easy enough to inflate if you stretch it a bit, but fairly hard otherwise. Light-headed after 4-5.

Great balloon color variety. Easy to inflate and get really big. Kids loved that they could play with the balloons with out them popping. Very good value for the price.

Easy to inflate, and REALLY big baloons!! We made A 14.5IN!!!!!

Came with 2 spools of 1/4-inch ribbon for tying the balloons to something (I don't know how much ribbon there is... I'd guess, maybe 10 yds per spool). Also came with 5 sheets of 20 glue dots each, to stick the balloons or the ribbons to something. Wasn't expecting those extras.

These are great quality balloons. A little hard to tie because they are so thick. Worth the price for sure! We filled our boss’ office with 1200 of them :)

Great Colors! My 7yr old could inflate them. Nice to have strings and double sides sticky pads to accompany them

i used these with the balloon stands, they looked fabulas, definitly would buy again