STYLISH GLASSWARE |The Essentials Jewel mixers are perfect for serving fresh juices, cordials and milkshakes. Embellished with a subtle geometric diamond design, these durable, highly transparent glasses are suitable for everyday use and all occasions. TAKING CARE | These glasses are dishwasher safe. Please wash before first use. Please note this item comes as a set of four glasses ESSENTIALS JEWEL | The Essentials Jewel Range is perfect for long refreshing drinks such as ice-cold lemonades and fruit juices, making this a firm family favourite whether in the garden are at the dinner table. THE RAVENHEAD STORY | Ravenhead dates back to a factory based at St Helens in North West England in 1842, an area renowned for its glassmaking. Primarily producing bottles, Ravenhead in the 1930s branched out into domestic tableware such as bowls, jugs and drinking glasses.