Glow Ball, which is one kind of glow sticks, is fun & safe ... and alos can be ideally used in various celebrations. Glow Ball, which is one kind of glow sticks, is fun & safe ... ) shelf life: 2-3 years (3) size: 4.5x39mm (4) color: red, yellow, green, blue, orange, purple, pink (5) certificate: CE ...