• Ubude obungama-35cm
• Iza indishi engu-14mm futhi ihlakazeke phansi
• Yakhiwe ngengilazi ye-borosilicate yekhwalithi ephezulu
Yakhiwe ngezesekeli eziningi, njengeshubhu elinentambo, ishidi lezinyosi, ibhika, njll., ukwakha i-bong yokuvuselela kabusha ehlukile.Inqubo yayo iyinkimbinkimbi kakhulu, ngakho-ke okukhiphayo kuncane, kodwa bekulokhu kutholakala kalula.