Yankers Trout Dog Toy- Strapping! It's the belt inside. We've fortified the yankability factor of our heavy canvas with this tightly woven belt to create a strapping-strong toy for you and your dog. Yankers! Give 'er a yank, Frank! These toys held up under nearly 1/2 ton of serious tugging! Now that's a strong toy! Heavy CanvasHeld Up Under Nearly 1/2 Ton Of Serious Tugging Tightly Woven Belt