Premium Sterlie Pack

Your order will be sent with Royal Mail or Parcelforce, you will receive
an email once your order has been dispatched.

Orders are dispatched within 3
working days unless stated otherwise.

Plain packaging.

We offer a 30 Day Money Back / Replacement Guarantee on all of our products.

To claim your replacement or refund please send us photos of the issue to: support [at] williamscosupplies.com and we will do our best to help you.

Legal Disclaimer

All products sold by Williams Co Supplies are intended for lawful uses only. Our mushroom cultivation supplies are designed for growing gourmet and medicinal mushroom species.

We explicitly prohibit the use of our products for cultivating psilocybin-containing mushrooms or any other controlled substances. Cultivation of psilocybin mushrooms (magic mushrooms) is illegal in the United Kingdom and most other jurisdictions, with severe legal penalties for violation.

By purchasing our products, you acknowledge this disclaimer and confirm that you will use these items solely for legal mushroom cultivation purposes. Williams Co Supplies accepts no responsibility for misuse of our products contrary to applicable laws and regulations.

If you have questions regarding which mushroom species may be legally cultivated, please consult appropriate legal resources or authorities before proceeding.