The Zuma Longdrink Glass – Set of 4 by Serax / Kelly Wearstler is crafted from potassium glass with a warm amber core encased in clear glass, giving it a layered gradient effect.  Each glass measures 7.5 × 7.5 × 16 cm and holds 55 cl. Dishwasher safe and hand-finished (subtle irregularities are part of the aesthetic), it blends refined texture and practical design for everyday or special-occasion use.