The opposite, a squeeze catch, is when more than one ball is caught in the hand simultaneously on the same beat.
Multiplex throws are generally grouped into different categories: Stack, Split, Cut, and Slice.
This terminology can be applied to either the stack, split or cut duplex types of throw.
So, a vertical stacked duplex refers to two balls being thrown together, one above the other in the air, and caught together in the same or other hand.
Siteswap notation is a way of writing down a key feature of juggling patterns: the order in which the balls are thrown.
Claymotion is a style of multiplex juggling that was developed by British juggler Richard Clay in the early 1990s and was first given the name 'Claymotion' by Erica Kelch-Slesnick in 1997.
Emphasis is placed on the graceful movements of the arms and so throws are typically low and controlled.