Usurai Tapered Tumbler Set of 6 - Large kintoslowcoffee nearly a million have been

nearly a million have been sold in Japan — not through novelty

5 in / 39

Framed in a body of bent plywood manufactured by skilled craftsmen expressed the precise circular shape and beautiful finish

5 in diameter x 3 in height

Materials: FSC 100% Unfinished Oak

Usurai Tapered Tumbler Set of 6 - Large kintoslowcoffee nearly a million have beenElegant simplicity for the everyday: This thin glass is actually many times stronger than traditional glassware as it has undergone a special process to ensure strength and finish. HS stands for "Hard Strong" and refers to a technology developed and employed for over 50 years by TSG in Japan to craft industry leading glassware. By heating and rapidly cooling the glass surface they have created a strong tempered layer which is more difficult to scratch