4 Inches Glow Stick, which is fun & safe and non-toxic, ... , can be ideally used in various celebrations and so on. 4 Inches Glow Stick, which is fun & safe and non-toxic ... ) Certificate: CE EN71, ASTM, SGS, REACH (3) Size: 12x100mm (4) Glowing time: 6-12 hours (5) Use: parties, pubs, clubs, and other ...