Each 5 Inch Glow Sticks Pack of 100 Assorted Colors have a small plastic handle with a hole for attaching. Dimensions: 5” long, approx. 3-4” of glow. Diameter – 9mm (0.36-inches). NOTE: 5 Inch Glow Sticks Assorted Colors come in Packs of 100. When you buy 1 you will receive a pack of 100 Glow Stick in Assorted Colors. When you buy 2, you will receive 200 Glow Sticks in Assorted Colors, and so on. Glow Sticks are packaged unwrapped in baggies. 6-8 hours of Glow time! Glow Sticks have a shelf life of 18 months. Batteries not needed, just crack, shake, and glow!