100X Perlglanz Latex Luftballons Feier Party Hochzeit Geburtstag Deko Feiertage
Conversion:1 inch=25.4mm or imm=0.0393inch
Balloons are made from 100% latex so they're biodegradable and sensitive to light and heat.
It's best to protect them from the elements and extreme temperatures when inflated.
so I suggest they should not be inflate too big