Mammoth Flossy Chews Color Rope Bones are made of natural select 100% cotton. Color Flossy Rope Bones clean your dog’s teeth and gums, whisking away plaque and tartar as he chews. These premium quality rope bones are tightly woven for long-lasting performance. Cleans teeth and gums. Great for tossing, tugging, and flossing. 100% cotton. Note: Flossy Chews ship in assorted colors – let us pick a color for you!