CONTENTS: 1 box of 25 premium extra thick 6” glow sticks and 25 strings. Party Sticks is your ultimate source for glow stick fun! Once they start glowing, PartySticks brand glow sticks will last all night. They will glow super bright for 8 - 10 hours. Then, they will start to fade out but may continue to emit some light for up to 36 hours. These glow sticks are fresh from the factory. Keep them in the freezer to make them last longer! Instructions: Bend along the entire length of the stick to break the inner tube. Shake vigorously to ensure the entire stick is illuminated. Attach tie to top of glow stick to create a necklace or other glow creations. This product is not suitable for children under 3 years of age (contains small parts).