Diameter: 4mm x Length: 38mm. These Fishing Glow Sticks are the most friendly and cost the least. These Fishing Glow Sticks are less than half the price of the fishing . These Fishing Light Sticks are and bright in the dark. It's cheap and plentiful. You can buy them and share them with your fishing friends. They will appreciate your thoughtfulness and creativity.Upgraded secret formula makes these Fishing Fluorescent Rods have higher brightness and duration. The maximum visibility is 180 meters and the duration is more than 10 hours. They can stay up all night, unless you're at The North Pole and have a 24-hour night. They are perfect Mini Glow Sticks for fishing lovers.Bend the middle of the to crumb the in the tube, snap and shake to mix the , the glow sticks will light and glow, then insert into the fishing bobbers or fishing rod bell alarm. Better materials prevent liquid leakage. Note: If there is Liquid spilled from the tube and splashes on the skin, you can wash it out with clean water.These fishing glow sticks can be used on thin tail float, thick tail bobbers. The fishing glow sticks also can be used on fishing rod bell alarm. When you are casting or reeling in, it does not hamper rod or line. They are easy put on the pole and stay on very well while casting. A great add for your fishing tackle. easier to fish. These come with the plastic tubes, so you set them up / place them where you .Material: Plasticcolour: As shownPackage Contents:100 x Fishing Glow SticksOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.