Most of their products are built in beautiful birch plywood or warm solid maple from responsibly managed and sustained forests. All the wood products they manufacture are GREENGUARD® Gold certified (Download the GREENGUARD® Certification), so you can feel confident about their superior safety, high quality and contribution to a healthier indoor environment for children. The smooth protective finish on their products is a special non-toxic UV lacquer made in the US that’s also GREENGUARD® Certified. Source: Whitney Brothers