VITEVER 3.5” Squeaky Dog Toy Balls (6 Colors) Puppy Chew Toys for Teething, BPA Free Non-Toxic, Spikey Dog Balls for Medium, Large & Small Dogs, Durable Toys for Aggressive Chewers

I have something similar to these plus a donut shape and my dog (who is a chewer) hasn’t broken them open yet! He is 14lb so not sure how they would work for a bigger dog. I bought them at home goods. https://www.amazon.com/Squeaky-Teething-Non-Toxic-Durable-Aggressive/dp/B09ZTH75L5