6mm dia in size. Floaties(floating beads). Made from hard compressed foam that is durable and buoyant. They have a hole for threading on your line above your hook. They are the perfect way to add just the right amount of floatation to your lure, hook or bait. Use Floaties for trout fishing too when you want more floatation then just a hard plastic bead. 40 Floaties per pack.