Does anyone here have something like this? Is it safe?

I see this being used in those baby spa and they are also being sold together with the inflatable pool so that the baby can swim at home too. I personally have brought my baby to the baby swim spa before and my baby enjoyed it very much. She did not seem to be uncomfortable at all and after the swim, there wasn't any marks on her neck too. I guess just like with all swimming flotation devices for children, please use them only with adult supervision around. Definitely do not leave your baby unattended in the pool alone with the float.