Materials used to make indestructible dog toys include solid rubber and durable compounds that mimic rubber. Many stuffed dog toys are deemed indestructible because of their use of heavier material, Chew Guard Technology, several layers of material and double or triple stitched seams.
Solid rubber toys like the ones made by Kong are considered the toys least likely to be destroyed by a dog's chewing. They come in different varieties, from puzzle toys to bouncy balls. Kong's Blue line is made of radiopaque material that shows up on x-rays if a dog happens to ingest a piece, while the company's Extreme Ball is both bouncy and resistant to punctures. Other solid rubber toys considered indestructible are GoughNut toys, which are made from two complete layers of solid rubber.
Toys such as the Planet Dog Orbee-Tuff balls and West Paw ZogoFlex Hurley chew toy are not made of rubber, but a compound that mimics its durability. These are approved for the most vigorously chewing dogs and are both backed by replacement guarantees.
Chew Guard Technology is found in both goDog and Sherpa Pet plush toys. This process inserts a durable liner into plush toys that is guaranteed to make their toys last longer than regular stuffed toys. Their edges are reinforced with double-stitched seams that can hold up even after tough play. The goDog series of toys are guaranteed by a no-charge replacement if the toy does not outlast plush toys of lesser quality.