This trap is made by reclining a piece of wood or flat stone propped on a stone in a way tht when slightly disturbed causes movement of the stone and flat fall of the flat piece of wood/ flat stone. Usually, the bait is placed beneath the flat stone, wood near the propping support, slight movement of the propping stone by the mouse in the process of feeding on the bait dislodges the stone which comes falling flat and trapping the mouse underneath.
b) Kawaida ya kirumbizi inategemea Yule mwenye kuitayarisha, kuna wanao cheza kwa siku moja, siku tatu au siku saba. HIvi inatagemea mfuko wa Yule mwenye kutayarisha au mwenye kuweka kirumbizi na kuandaa. c) Siku ya mwisho ya kirumbizi, ni siku ambayo Bwana harusi huja uwanjani na yeye kushiriki.Hapo huwa ndio kilele cha sherehe hio. Bwana harusi – yeye huwa amepambwa kwa mashada, viluwa na makoja.