Lub ntiaj teb ntawm cov khoom ua si yog qhov zoo siab, tsis yog rau cov menyuam yaus xwb tab sis kuj yog cov neeg laus uas nyiam so ntawm lub ntiaj teb tiag. Peb yog pab pawg ntawm cov kws tshaj lij muaj tswv yim thiab tshwj xeeb uas yuav tsim cov khoom ua si uas ntxim nyiam thiab thawj zaug hauv chav kawm tshiab txhua xyoo. Xws li cov yas / hlau fidget spinners, yas fidget lub voos xwmfab, sib nqus fidget nplhaib kom txo tau kev ntxhov siab & kev ntxhov siab thaum ua haujlwm, nrog rau cov blocks rau kev txhawb nqa kev muaj tswv yim hauv cov menyuam yaus. Nrog cov khoom siv qib siab thiab ntawv pov thawj, muaj kev nyab xeeb, ruaj khov thiab kav ntev. Ua raws li ntau yam khoom ua si nruj, suav nrog EN71, Tebchaws USA ASTM F963, Taiwan ST thiab Nyiv ST, thiab ua raws li CPSIA txwv rau cov hlau lead thiab phthalates. Cov khoom sib txawv raws li qhov xav tau sib txawv. Muaj kev txaus siab, thov koj xav tiv tauj peb. Peb tab tom tswj kom coj qhov zoo tshaj plaws ntawm kev lom zem, kev kawm thiab thev naus laus zis ua ke kom xa cov khoom txaus.