Tinksky Fishing Rubber Float Stopper Beads Bobber Stoppers Pack of Approx,Pack of 100 - Size S (Black) Color: Black Material: Steel wire, Plastics, Rubber 100 pcs fishing bobber stoppers, features red plastic ring, oval shape black rubber stopper. Made of soft rubber material, which fixes the stopper slip free on the line. The fishing floater will make your fishing activities more convenient.