Booda 2 Knot Dog Tug Rope - Multi-Colored - Multi-colored Booda 2-Knot Rope Bones can be used for interactive play or as solo dog chews. These rope bones are a fun and easy way to floss your dog's gums and help prevent dental disease by fighting plaque and control tartar. They feature machine washable, tightly twisted cotton for long-lasting durability. Two-Knot Machine Washable