Although Dartington Crystal is hand made to exacting standards, h&-crafting can never be perfect. Small imperfections can sometimes occur yet these 'slightly imperfect' pieces are still supremely functional & offer great value. See below for more details. This item can only be delivered to a UK Mainland address. A pair of luxury- weight glass tumblers that are hand made for every drinks occasion. Deep concentric circles formed into the heavy base gives a tactile & optical quality.