Made of mild steel and sustainable pine wood. Metal support with a mattress on it.The mattress can be purchased separately.Oil-based, non-toxic, and child-safe touch-up to the cribs.The crib can be converted to a sweet toddler bed with the help of our toddler conversion kit (sold separately)Every piece is unique, with no two being exactly the same because it is hand-finished, and the wood grain naturally varies.Fully assembled cribCrib Overall: 30.5"Wx60"Lx40"HSide Rail: 40" HMattress Support Height: 5.25" x 15 x "18.5"Weight Capacity: 22 - 25 kgToddler Conversion Kit: Half Rail Size: 52.5" L x 1" W x 16.75" H