.Size:4.5*39mm .red,blue and mutiple colors .Glowing:5-24 hours,up to 2 years .Certification:EN71,CE,ASTM,SVHC, ... yearsColor multiple colors orange, yellow, green, blue, purple, pink, red and availablePacking1 glow stick+ accessories/ foil bag, 50/500 box size ... welcome our clients to visit our factory, and build happy long cooperation. up 1 inch light stick for people party and home play decoration