... 2 years .Non-toxic, non-flammable, non-radioactiv .CE EN71 ASTM Certification CE,SGS,ASTM,MSDSSize 10mm*150mmGlowing time 5 ... multiple colors orange, yellow, green, blue, purple, pink, red and availablePacking2 glow sticks + hat +rope / foil bag ,80 bags/ ... , special events, festival, celebration, giveaway, carnivals,bars, nightclubs gifts toys for kids and uses toys happy and raving in the concert