We add the texture in this glassware line by delicate line, all by hand. No two lines and no two pieces are exactly the same. Imagine the time and skill required to grind each line into the fine glass. Too much pressure and the glass will break. A subtle adjustment and the etched line become as winsome as a blade of grass. The effect you see here is not some cheap decal slapped around the glass. A skilled artisan working with a fine grinding tool makes every curve and carving. You feel the impression the artisans have left each time you hold the glass in your hand. Machine washable.