Plastic, iron, steel; Marble run game: let the, stay from electronic products, and help up intelligently; Marble puzzle: it is well-made of and sturdy materials, safe and practical for using time, puzzle; Crafts assembly: it can also be -teaser puzzle, it's a highly educational construction experience that satisfied you, Run Puzzle; Marble run puzzle: each part is strong enough, not easily deformed or broken, and, marble track; Marble maze: a wonderful educational to exercise ability, ' creativity, and imagination, 's

What's in the box
1 x Marble Track Sets