4M Crystal Growing Science Kit

Crystal science right before your eyes. Crystals are used in variety of modern devices like video cameras, watches and microchips. Includes three colored crystal seeding mixtures, producing a fully grown crystal measuring 4 cm x 5 cm, with many different color possibilities. Award winning toy - selected by University of Cambridge Science Festival. Recommended for ages 10 years and up.

About Toysmith: The Toysmith story began in 1982 and for over forty years the company has built a reputation of trust and customer service within the toy industry, manufacturing and distributing every type of high-quality toys and gifts under the rainbow.