ADVENTURER KNEE&ELBOW PADS REDUniquely shaped blocks with enchanting patterns inspire building in a whole new way. Interchangeable train cars add more possibilities. Features Interchangeable train cars make for endless creative possibilities This 17 piece maple block train displays bright rainbow colors and patterns to add to the fun of block building and train play Develops motor skills and stimulates imagination Recommended for ages 18 months and up Non toxic finishes and child