Disclaimer

Information about use of this website.

1. Information

We take care over website content, but information, planning, figures and programme elements may change. General website information does not create enforceable rights.

2. Collection and logistics

Box orders, pickup requests and logistics requests are assessed individually. An online request does not automatically guarantee delivery or pickup on a particular date.

3. School challenge

Kilogram totals, rankings and milestones are intended to make educational impact visible and may be corrected after validation.

4. Educational content

Lesson material is educational and does not constitute technical, legal or professional advice. Schools remain responsible for appropriate supervision.

5. External links

We are not responsible for the content, availability or privacy policies of external websites.

6. Liability

To the extent permitted by law, Grondstof Helden is not liable for damage arising solely from reliance on general website information.

7. Intellectual property

Our texts, design, trademarks and educational materials may not be commercially used or distributed without permission.