Reliable material: Halloween long metallic balloons are made of durable rubber latex, not easy to break and you can twist and combine different metallic balloons effortlesslySize: Halloween twisting balloons are stretchable and can be inflated from 32 cm/ 12.6 inch to 110 cm/ 43.3 inch; Please note that do not inflate the twisting balloons to its maximum length; When inflating, 10 cm should be reserved to avoid balloon explosionImprove creativity: the Halloween modelling balloons are long enough that you can twist them into different shapes, such as animals, flowers or whatever you like, to give full play to your imagination and hands-on abilityPackage include: you will receive 50 pieces of Halloween twisting balloons in black; Nice decoration for birthday party, wedding, or any celebrationsHow to inflate: using a balloon pump to inflate the Halloween long metallic balloons is easier than filling up the balloons by mouth; You can extend the metallic balloons into the suitable length you like, but remember not to inflate too much air