Ijezi yokukhwela ibhayisekile yenziwe ngelaphu elikhaphukhaphu, eliphefumlayo, elinesikwe esilungelelanisiweyo, i-zipper yobude obugcweleyo, kunye neendlela zokwenza ngokwezifiso. Ikwabonelela ngelaphu elikhawulezayo elomileyo, iiphaneli zobuchule zokungenisa umoya, kunye nokuqina.