This all happened by accident. I took the laundry out of the washer and an underwire came out of my bra and fell to the floor...., she snagged it right up and she plays with it 20-30 minutes a day, sometimes more, she will play with it at times for a whole 30 min. and go back to it later. It is completely safe, it is curved and has a good tuff coating on the ends, and she doesn`t chew it, just flips it around, and slides it across the floor. Linda