Lub Npib Cia Case yog ua los ntawm cov khoom siv txhuas muaj zog, txhim khu kev qha thiab rov siv tau, tsis yooj yim rau tawg lossis khoov, muab kev tiv thaiv npib ntau dua li lwm cov yas los yog cov khoom hnyav hnyav rau kev siv mus ntev.
Peb yog ib lub Hoobkas nrog 15 xyoo ntawm kev paub, tshwj xeeb hauv kev tsim cov khoom lag luam xws li cov hnab pleev xim, pleev cov rooj plaub, txhuas rooj plaub, rooj zaum davhlau, thiab lwm yam.