Peb lub thawv ntim hexagonal nta ib qho kev tsim tshwj xeeb nrog rau rau tus neeg daim duab peb sab compartments, txhua tus muaj peev xwm tuav tau cov khoom sib txawv. Txhua lub thawv me tuaj yeem raug tshem tawm nyias, ua kom muaj kev sib koom ua ke ntawm cov khoom. Lub thawv ntim no tsis yog tsuas yog ua kom zoo nkauj thiab siv tau tab sis kuj yog tsim los ntawm cov khoom siv hauv eco, ua rau nws zoo tagnrho rau ntau yam khoom ntim khoom siab.