Primary Function: Chikwangwani Across ndi chikwangwani chopangidwira chikondwerero cha luso lamakono la digito loperekedwa ku luso la miyala la mapiri a Helan ku China. Chikwangwaniki chinasindikizidwa pa zipangizo za lenticular. Chithunzi chimodzi chikuwonetsa chizindikiro choyambirira cha phiri la Helan ndipo chinzake chikuwonetsa mtundu wamakono wa digito wa chizindikiro chomwecho. Pamene malo owonera akusintha, chizindikiro chakale chimazimiririka ndipo chizindikiro cha digito chimaonekera. Chithunzi cha chikhalidwe chinajambulidwa ndi kusakaniza kwa inki, tiyi, gelatine ndi ufa wagolide, zoperekedwa mwa kuwaza kuti apange kalembedwe kofanana ndi mwala. Across ikufuna kusunga ndi kugawana chikhalidwe chakale chomwe chili pangozi yotha.