Go Game Guru Go Bowls: Ash Go Bowls with Mahogany Lacquer Finish - Size 16 Genuine Ash Go bowls Attractive mahogany stain complements lighter colored Go boards Solid, high quality hardwood construction Size 16 (16 cm diameter) - suitable for all stone sizes Dimensions: 3.9" height x 6.3" diameter (10 x 16 cm). Weight: 1.9 lb (0.85 kg).