This is an official commemorative proof coin set from the 1988 Seoul Olympics. It includes four 2,000 won coins and four 1,000 won coins. Medal sizes: From the top row, starting from the top left (Diameter, Thickness, Weight): 1: 3.2 cm, 0.7 cm, 21 g 2: 2.3 cm, 0.6 cm, 15 g 3: 3.7 cm, 0.7 cm, 21 g 4: 3.4 cm, 0.6 cm, 15 g From the bottom row, starting from the left: 1: 3.4 cm, 0.6 cm, 15 g 2: 3.7 cm, 0.6 cm, 21 g 3: 3.3 cm, 0.6 cm, 15 g 4: 3.7 cm, 0.7 cm, 21 g Case size: Height: 21.3 cm Width: 12.3 cm Thickness: 3.0 cm Total weight: 408 g The item is carefully packaged and shipped with a tracking number. We use DHL for shipping services.