Jethrik Periodic Square Stickers

From the Doctor Who universe, Jethrik is a blueish mineral that is a vital component for certain types of warp drive engines. Though harmless in its natural form, a handful of jethrik can power an entire starship. The scarcity of jethrik makes it valuable: according to Garron in Segments of the Key to Time, it is the rarest and most powerful element in the universe.

You cannot go wrong with a classic square-style sticker.  The Jethrik Periodic sticker has clean, crisp edges and a simple-but-elegant look in a classic builder game style. 

.: Four sizes to choose from
.: Grey adhesive left side for white stickers
.: For indoor use
.: Not waterproof