Lona ubude be-beaker bong obungu-14.9 amayintshi obunombala ongezansi, umlomo kanye nesitsha.Mibili imibala etholakalayo, eluhlaza okwesibhakabhaka noluhlaza.Isici esihle kakhulu se-bong ukuthi inamabala eduze komlomo entanyeni.Lo mklamo ukhulisa ukungqubuzana futhi wehlisa indawo ethintayo nendawo eshisayo ngenkathi usebenzisa i-bong.Wonke ama-bong anezesekeli ezifanayo.