With a through-hole design, slides on line and leaders for attracting walleyes, trout, salmon and more. Slide over hook eye to protect knots. Phosphor-charged, they're also a natural for using with saltwater Sabiki rigs. Sizes by diameter: #3 - 1/8", #4 - 3/16", #5 - 1/4". Available white, green, and pink glow-in-the-dark colors.