When gently thrown together in the air these two magnets rapidly repel and attract, emitting a loud, eerie (almost alien-like) buzzing sound. The two strongly-magnetic lozenges are made from haematite (also known as iron oxide), a naturally occurring mineral found in many countries.
Pack of 2 measuring 6cm long. For ages 8 years and upwards.
Jollys says "Always so popular, this is a curious toy for curious people! Lots of fun and the sound delights children who love to make a noise."