For twisting balloons, it is necessary to have professional balloons that are of sufficient quality to withstand a lot of squeezing.
The balloons I use are completely biodegradable because they are made from natural thick milky sap (known as latex) from Hevea brasiliensis rubber trees that grow on plantations in South America and originally come from dense forests around the Amazon.
Latex is obtained by spiral incision of the bark of a mature tree (at least 4-5 years old) and constant shrinkage, because after about 4 hours it coagulates and the incision on the bark closes.
Therefore, it is necessary to constantly collect it and send it for processing immediately, before it hardens completely.
Despite its biodegradability, I do not recommend leaving balloons or pieces of burst balloons after a party outdoors or in nature. They should be picked up and cleaned up. I never use helium and I'm against uncontrolled ballooning, because they often end up in nature, animals swallow and die, etc.
Since these balloons are made of 100% natural material, allergic reactions are possible!
I never use aluminum foil air balloons or plastic / silicone bubble balloons; I use only natural latex balloons.