This educational system (also short TK2T, Twin Two Tier Trellis, dt. Twin two-row trellis) is one of the group of Trellis educational systems, It was created in 1982 by Dr. med. Richard E. Smart (* 1945) developed in New Zealand at the research station Kauwhata. The system consists of two leaf walls standing one above the other. The Rebstock tribes are raised in alternating height, with a stick at a height of 40 cm Kordone be built in both directions to the next vine. The next vine will be made at a height of 110 cm. This creates two deciduous and grape zones at different heights. See also Appearances under training system (Systems) and Weingarten Care (Activities).