The Tibetan cult instruments are built as identical pairs - in contrast to the Tibetan-Buddhist instrument pairs, which differ in details. The very old corpora of VII c 1032/VII c 1033 were assembled from two halves in the longitudinal direction. The inner bore of both instruments is clearly oval. There are also clear corrections to the tone holes. Both instruments have seven brass rings between the finger holes. The top ring, which runs over the thumb hole, is cut out. The tips of the body are covered with approx. 65 mm long brass caps. Both tube supports are each fitted with two discs that can hold lip discs.