The Pocket Chemist is an incredibly useful, double-sided stencil and chemistry reference.

You get a discount and I get a little kickback from the lovely people at Genius Lab Gear every time you buy one of these fabulously-useful Pocket Chemists, a set of the equally-brilliant Science Word Magnets, and most of their other products.

For more info and photos, check out the Pocket Chemist and Science Word Magnets blog posts.

When you order, enter the code FLASK15 at checkout.

Thank you, lovely readers xx