Duraforce Bone Blue Chew Toy - Blue - Great for interactive play with one or multiple dogs. Best for dogs who like to whip their toys and play tug for hours. Floats in water, and it's machine washable, (air dry). All of the toy layers are sewn together to make one super strong layer of material. Each toy is sewn together with 2 rows of cross stitching and 2 rows of linear stitching. Some toys have an additional piece of webbing trim which protects the sewing edge and makes the toy even stronger.