Tuubbada kululaynta qolka qabow waxaa loo isticmaalaa qaboojiyaha hawada, qaabka sawirka tuubada kululaynta waa nooca AA (tuubo toosan oo laba jibbaaran), dhererka dhererka tuubbada ayaa raacaya cabbirka qaboojiyahaaga, dhammaan kuleyliyahayaga baraf baa loo habeyn karaa sida loo baahdo.
