I used this with my grandaughter who is three and a half. At that age she needed the holes made for all the items. I plan to do another order so will make a note of that. She LOVED the final result.
These earmuffs work well once on, but my 3 and 6 year olds do find it tricky getting them into position and putting them on themselves so far.
I had my 3 year old twins doing them today. They found it hard when there were no pre made holes. They got there with support and LOVED the result.
Absolutely happy with the stuff I bought for my grandson he loved them. The helicopter was great to build
Not opened yet birthday present for later in the year. However looks great.