Toxin Free On a Rope Tough and Strong Vanilla Scented Rice Husk Rubber 100% Natural Cotton Long Rope Means You Can Throw the Beco Ball Further! Naturally Sustainable This Beco Ball on a Rope is the world's first natural rice husk rubber and cotton dog toy. Made from natural rubber and rice husk, the Beco Ball on a Rope is non-toxic, eco-friendly and completely safe for the most enthusiastic dogs!