Amaqembu ahlinzekwa; Ilungele noma yimuphi umndeni ukuqoqa nokuqoqa. Shintsha i-Rotary: Vula i-switch ngaphezulu kwepuleti yezithelo ngobumnene, futhi kulula ukuvula noma ukuvala ipuleti lezithelo. Isizinda se-Anti-Skid: I-Silicone anti-skid pad ezansi, anti-skid futhi igqoke ukumelana.