Minibrix were construction kits manufactured from 1935 to 1976 in the UK. Developed in 1935, they enabled children to build their own miniature houses. Like the later and more famous construction toy, Lego, Minibrix consisted primarily of interlocking bricks with moulded studs on the surface, but being invented before the availability of modern plastics they were made of hard rubber which had the necessary ability to deform under pressure to allow firm interlocking of studs and holes.