Chingwe cha "W" chimagwiritsidwa ntchito nthawi zambiri pamene chithandizo chowonjezera chikufunika pamodzi ndi ma mesh ndi miyala.Zingwe zachitsulozi zimakokedwa pamwamba pa thanthwe ndi ma bolts ndipo zimakonda kugwirizana ndi thanthwe.Amagwiritsidwanso ntchito kwambiri pothandizira pansi makamaka pamalo ovuta.