Edge Crystal Red Wine Glasses 520ml/17.75oz. The Edge crystal collection by Rona is a lightweight one piece construction, featuring contemporary angular shapes and laser treated chip resistant rims. Manufactured from fine crystal glass for ultimate presentation of wines and perfect durability for hospitality & catering.Capacity: 520ml/6ozEdge collection by Rona glasswareLightweight one-piece constructionContemporary angular shapesLaster treated chip resistant rimsPack of 6