1. Ukusekela ukuzungezisa okungu-360°, isikrini esivundlile nesiqondile singasetshenziswa ukuze kuzuzwe izidingo ze-engeli yokubuka ehlukene.
2. I-telescopic isekela ukulungisa ukuphakama
3. I-anti-slip pad anti-seismic buffer, ivikela ngempumelelo iselula