Professor Oiva Toikka's Kastehelmi series, Finnish for "dewdrop," evolved from a technical challenge when Toikka started using glass droplets to cover joint marks left on the surface of pressed glass pieces. The result was a popular range of glassware decorated with beads of glass that glisten like dewdrops in the morning sun.

Each piece plays with light in a way that showcases the reflective beauty of the glass. Iittala's beloved Kastehelmi collection offers a wide range of versatile, tactile pieces that are both functional and decorative. The Kastehelmi tumbler is a classic example of everyday Finnish glassware. Delicate yet durable drinkware that suits any table. Great for cold drinks and combined with other Kastehelmi pieces.