The set includes 6 marbles, and you only need 1-2 to play most challenges, so losing one won't stop the fun.
While it's designed for ages 6+, younger children can enjoy it with guidance since it develops the skills they're learning.
Simply wipe with a dry cloth - don't put it in water since it has mechanical parts inside.
Yes! It's compatible with first and second-generation track sets if you want to expand the play area.
Each of the 8 challenges has different difficulty levels, so kids stay engaged as they master each one.