Not for outdoor use. Avoid prolonged contact with liquids.
We have had some people concerned about this, but few people have actually had issues with them. Our boxes are made from 44 ECT cardboard, which is one of the thickest cardboards available. That said, they are just cardboard and are not made for little teethers.
No. Our cardboard storage boxes do not contain any formaldehyde, fire retardants, lead, BPA, PVC, phthalates, formamide or cadmium.
We use a water soluble ink, which is food contact safe. You can feel comfortable that your little ones are safe even if they have a taste for cardboard and ink.