BNR Tackle Bobber Stops Beads -Features a small diameter through hole to keep your bobber stop from slipping through the bead and a 6mm outside diameter to ensure that the bead does not slip inside the guide on the rod. Small diameter through-hole prevents the bobber stop from slipping through; 6mm outside diameter keeps bead from entering rod guides; Ideal for float fishing setups targeting steelhead, salmon, and trout; Quantity per pack: 25;