First I just want to say I bought a lot of teethers before buying this. Before I came across this at Walmart, I was searching for a teether or toy that vibrates because we realized that she loves anything that vibrates, so when I came across this one, I had to have it. The first one we bought was in 2018 and I just bought the 6th one (5 lions, 1 octopus that she doesn’t really like) cause they either have been over used or she ruined the vibrating part from biting. My daughter is 2 but she is developmentally delayed due to her many cardiac problems and genetic disorder, she looks like she’s only 6 months old how little she is. She’s not one of those babies who cries a lot, only when something is really wrong and we give her this lion, which calms her down quickly.