Glow sticks are a fantastic addition to any celebration or event. Our glow sticks are 8" long & come with enough connectors to turn them into bracelets & necklaces. Eachpack of 100is suppliedin avariety of colours that will glow for up to 8 hours! To activate them all you have to do is snapand shake! What do I get? Eachpack contains 100 Glowsticks 100 plastic connectors to extend your glowsticks & a storage tube. What are Single Bi & Tri Colour Glow sticks? The only difference between these glow sticks is the amount of colours in each single glow stick. The picture above shows single colour glowsticks at the top & bi colour glow sticksat the bottom.