... hours,up to 2 years .Certification:EN71,CE,ASTM,SVHC,MSDS .Non-tox Certification SVHC,CE,ASTM,MSDS,EN71,BP,7PSize ... foil bag, 50/500 box size 52*27*22cm G/N weight 6/4kgsPrincipleNo heat, flame and sparks, ... can make true with the delivery time and product quality.2.Our factory is close to the Beilun ... , and build happy long cooperation. up 1 inch light stick for people party and home play decoration