4-8mm cube crystal glass ubuhlalu ubuhlalu obuncane futhi obunobuso, ngokuvamile benziwa ngengilazi yekristalu yekhwalithi ephezulu.Zinomumo we-cube futhi zinezindawo zokusikwa ezinembayo ukuze zicwebezele futhi zibonakale.Lobu buhlalu butholakala ngemibala ehlukahlukene, okuhlanganisa nemiphumela ecacile, enombala, kanye namacici, ngakho ifanele ubucwebe obuhlukahlukene namaphrojekthi wemisebenzi yezandla.