Write secret messages to your friends in the know, keep diary entries safe from prying eyes with light-coded messages, and leave invisible tags in school notebooks with this handy and affordable invisible ink pen! The pen casing is filled with invisible ink, and the thin felt tip allows you to create detailed images and messages. The pen cap contains a small UV light that allows you to reveal your messages for yourself, and to trusted confidantes. Buy a few for your friends and commence a covert correspondence or start a secret society! Makes an excellent party favor or stocking stuffer.
NOTE: This pen comes in assorted colors - depending on our current stock.
This microscope is so versatile you can even take it with you on a job site!
Build a robot that's an artist too!
Use this cool Sea Monkeys zooquarium to teach your child how to take care of a pet!
A combination of three of our great discovery toys, all in one package!
A beautiful desk or bookshelf accessory for the reading fanatic in your family!
This smaller transportable Van de Graaff Generator will easily fit in any classroom!
At xUmp.com you will find a large selection of scientific products carefully curated by real scientists and educators. We sell everything from educational toys, teacher supplies for science classroom, lab equipment, science toys, science fair supplies, classroom equipment, chemistry glassware, chemistry lab equipment, physics demos, electronics supplies, robots, science kits to geeky science gifts.