The first figure was released 27 May 2001 as a free gift to visitors of the World Character Convention 12 in Tokyo. Since then Be@rbricks have been released in several different sizes using a variety of materials, including wood, felt, and glow-in-the-dark plastic.
The standard size is seven centimeters high, and these figures are referred to as 100% Be@rbricks. Other Be@rbricks are named for their size relative to the standard: 50% are four centimeters high, 70% are five centimeters high, 400% are 28 centimeters high, and 1000% are 70 centimeters high. A 200% size chogokin be@rbrick has also been produced standing 14 centimeters tall.
Be@rbricks differ from their predecessor Kubricks, in that each series includes 18 figures in 10 different themes , which are constant from series to series.