A four pack of sewable, heart-shaped bright pink LEDs.

The voltage (and hence current) supplied from LIR2032 rechargeable coin cell batteries may damage the Teknikio LED boards, so please ONLY USE  3V COIN CELL BATTERIES with the Teknikio range!

make a range of fun and beautiful sewables (or stickables - you can use them in origami/papercraft projects too), that are designed with children and education in mind, but they suit explorers, inventors, and curious minds of all ages: 8 to 108!

They've also put together a couple of fab guides on and  to teach you the basics and give you some project ideas.