Waxaan leenahay laba nooc oo kuleyliyaha qaboojiyaha qaboojiyaha, mid ka mid ah kuleyliyaha baraf ayaa leh siliga rasaasta kan kalena ma haysto. Dhererka tuubada waxaan inta badan soo saara 10inch ilaa 26inch (380mm,410mm,450mm,460mm,iwm) Ledhku wuu ka duwan yahay kan aan lahayn rasaasta, fadlan soo dir sawiro si aad u xaqiijiso ka hor inta aanad waydiin.