Instruct: Classify the given Amazon review into its appropriate rating category
Query: Very unsafe for dog, very destructible, in days

I just received this dog toy 5 days ago. It posed a very serious risk to my dog. The bristle part of this toy literally shredded in his mouth and the toy became embedded in his gums, with blood oozing all over carpet. It had to be manually dislodged from his mouth. I vacuumed up loose bristles. I am concerned that he swallowed the sharp bristles.