Area Thaj chaw: 5mm × 5mm 4mm × 4mm 3mm mm 3mm
● Qhov hnyav ib square: 80g ----- 160g
Ength Ntev ntev rau ntawm txhua daim yob: 50 metres, 100 metres lossis 200 meters
Qhov dav ntawm txhua yob: 1 meter ---- 2 meter
Xim: dawb (qauv), xiav, ntsuab lossis lwm yam xim
● Ntim: txhua yob yog blister ntim, plaub los yog rau sab hauv lub thawv, lub thawv ntim 40 ko taw tuaj yeem tuav 80,000- -150,000 square metres
Ations Tshwj xeeb tshwj xeeb thiab ntim tshwj xeeb tuaj yeem ua raws li cov neeg siv khoom' s tshwj tseg.