Leolandia is very safety and environmentally conscious. The company was set up with these principals and with this in mind the cardboard used is made from 60-70% recycled papers.
The stock can't be sourced from 100% recycled papers because it wouldn't be robust enough.
In saying this though, all the non-recycled cardboard is sourced from Responsible Forest Management which is a legal obligation in Poland to re-plant trees for the paper industry and replace what has been taken.
Any glue used is water based and no tools or glue are required in the assembly of any Leolandia product - just your hands!
All Leolandia products are CE MARKED and conform to CPSIA, EN-71 & ASTM F963 safety standards.