Glow in the Dark Rubber Spike Dog Leash. Is your furry friend full of attitude? Then this leash is perfect and it's safe too. Made from non-toxic rubber with glow in the dark spikes on one side and a double thick lanyard in between the rubber for extra strength. Waterproof so wash with ease. Don't forget the matching collar! <Br> Sizing: <b>10 mm.</b>: 5 ft. <b>12 mm.</b>: 5 ft.