MAISON BALZAC L'Espresso Martini $165.00 100% Borosilicate glass. 14.7cm x 10.8cm Add to Cart Description The L'Espresso Martini - standing tall and proud upon a stem of beige and black borosilicate glass. On top, a single crystal coffee bean remains still and everlasting. Hand blown, and as a result slight variances in shape, size and colour may occur.