Cov khob kev cob qhia yog cov khoom siv haus tshwj xeeb uas tsim los rau cov menyuam mos thiab cov menyuam yaus hnub nyoog peb hlis thiab laus dua; lawv feem ntau pom zoo rau kev taw qhia ib puag ncig rau lub hlis ntawm hnub nyoog los pab txhawb kev hloov pauv ntawm cov me nyuam lub raj mis mus rau cov khob haus dej. Lawv lub luag haujlwm tseem ceeb suav nrog kev txhim kho tes- kev sib koom ua ke ntawm qhov muag, txhawb nqa kev haus dej tsis txaus, thiab ua kom muaj dej txaus. Cov khoom no feem ntau yog tsim los ntawm cov khoom noj khoom haus - cov ntaub ntawv qib xws li PP, PPSU, lossis Tritan; Qhov tseem ceeb, PPSU muaj peev xwm tiv taus qhov kub txog li 180 degree, ua rau nws tiv taus siab - kub kom tsis muaj menyuam thaum tseem muaj kev nyab xeeb thiab tsis muaj - tshuaj lom. Cov khob kev cob qhia feem ntau tuaj nyob rau hauv ob hom- khob khob thiab straw khob- kom haum raws li qhov sib txawv ntawm cov hnub nyoog sib txawv.
Kev cob qhia haus dej feem ntau pib nyob ib ncig ntawm rau lub hlis ntawm hnub nyoog. Nyob ntawm tus menyuam mos lub hnub nyoog tshwj xeeb thiab theem kev loj hlob, qhov kev loj hlob cuam tshuam nrog kev nthuav qhia cov khob khob, ua raws li cov khob straw, thiab thaum kawg hloov mus rau lub khob qhib. Thaum lub sijhawm pib, cov khob ntim dej uas muaj cov pa tawm- cov qauv pov thawj tau pom zoo, vim tias lawv cov tactile xav tias zoo ib yam li lub txiv mis lub raj mis, ua kom yooj yim hloov. Nyob ib ncig ntawm cuaj lub hlis, cov me nyuam mos tuaj yeem maj mam pib siv cov khob straw uas muaj cov cuab yeej tiv thaiv-choking mechanisms. Thaum muaj hnub nyoog 12 xyoos thiab laus dua, kev cob qhia nrog cov khob qhib tuaj yeem pib. Cov qauv tsim khoom feem ntau suav nrog cov yam ntxwv xws li xau-cov qauv pov thawj, tiv thaiv- colic vents, dual- sab tes tuav, thiab ntim cov cim; Tsis tas li ntawd, tshwj xeeb sub- pawg-xws li lub ntiajteb txawj nqus- pob khob thiab ntxeev- khob sab saum toj- tau tshwm sim los ua kom tau raws li cov neeg siv khoom xav tau ntau yam. Qee cov khoom siv daim di ncauj- tshuab txais tshuab lossis "spout-plus-straw" dual configuration los txhim kho cov neeg siv kev paub thiab hloov mus rau qhov yuav tsum tau muaj ntawm ntau theem kev loj hlob. Cov khoom lag luam tseem ceeb hauv kev ua lag luam feem ntau muaj peev xwm ntawm 180 mus rau 400 milliliters, nrog rau qee lub npe siv kev txhim kho tshiab -xws li V- zoo li cov straws thiab detachable, yooj yim-rau-cov qauv huv si- txhawm rau txhim kho kev tiv thaiv kev nyab xeeb{28} thiab kev nyab xeeb ntxiv.
