Rhode Island Novelty Mesh Squishy Stress Balls - Pack of 12 Colorful Sensory Toys for Stress Relief, Office Desk, Classroom & Party Favors

I'm surprised at all these very poor reviews. I have had these balls for over a year. Yes, with frequent use they will eventually pop...but this has happened to only 3-4 balls in More than a years time.As a BCBA therapist, I work with quite a few children with autism and special needs...needless to say, these get A LOT OF use, lots of squeezes, pushes, throws, grabs by my kids ages 3-16. They have held up quite well after all the play and fun. No doubt, they will break eventually but I'm confused by reviews stating they popped on first use?!? Mine are used daily and again, in over a year, only a few have popped.And there is a faint odor, but nothing terribly strong or bad enough to be disgusting. Perhaps the company needs better quality control. The batch I received have been wonderful therapy toys and I feel were a fantastic purchase and I was considering buying more for colleagues.