I brought this and green ankle bells for 2-3 years old daughter. They sounds nice together, but yellow one is quite tight/not so flexible, that it's not comfortable on the ankle after a while.
Longer/more flexible string with can be used for replace, but it would be nice to have it from the beginning.
90mm vs 100mm in description of these two ankle bells is quite non helpful.
Sounds good, but needed some effort if you want to use it more.