Durable Thick Woven Outer Material Makes this toy thicker and stronger than many multiple layer toys. 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. Duraforce toys are made with UP TO 2 layers. The exterior mesh is thicker that most multiple layer toys ! 1 layer Durable. Plastic Coated Woven Mesh on the outside. 1 layer strong lugange grade material on the inside. 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. The squeakers are attached to the toy with protective pouches. This feature provides a safe window to remove the toy from your pet should it reach the core.Over time your pet may begin to wear down the different layers of the toy, and may loosen or remove pieces. This is normal. Remove loose threads to avoid ingestion. If your pet reaches the white stuffed core of the toy discard immediately. Our toys are “Built to Last”, but keep in mind no toy will last forever. This toy is designed as an interactive “play” toy and is not a chew toy. No part of the toy should be ingested. Dog toys are meant for you and your pet to enjoy together. Don’t allow your pet to play with any toy unsupervised. Remember to be a responsible parent and stay close when your dog is playing with any dog toys.