These are very cute, and are the perfect size for cats to chase and carry around. My cats absolutely love them, especially after putting a little catnip spray on them.
Unfortunately they love them a bit too much, especially licking them - their rough tongues caused the toys to become frizzy within days, and I was concerned they would start eating the wool with how much they enjoyed grooming them after batting them around the house. Maybe they wouldn’t be so intent on eating them if they didn’t smell like catnip?
Regardless, my cats had a good time and didn’t have a wool-hairball, and that’s all that really matters.