THE GO STONE SET INCLUDES: 361 single convex melamine stones, along with non-woven go board and stone storage bags for easy carrying and storage, making it very suitable for travel. The set is cost-effective, ideal for beginners, daily playing, Go clubs, or Go competitions. Single Convex Melamine Stones: 181 black and 180 white stone pieces, each measures 22 x 6 millimeter (approximately 0.86 x 0.23 inch). The melamine stone is non-toxic, odorless, impact-resistant, and corrosion-resistant. Consistent in size and uniform in arc.. The surface of the pieces is matte finished, which helps protect vision. Set of 2 Storage Bags: The bag is crafted from high-density linen, ensuring both durability and superior breathability. Measuring 20 x 15 centimeters (approximately 7.87 x 5.9 inches), it features a secure drawstring closure to hold the pieces in place, preventing any movement during transport or storage. Non-woven Go Board: With 19x19 playing field, the board is lightweight, portable and foldable, measures 52.5 x 50 centimeter (approximately 20.67 x 19.68 inch) Professional Go Manufacturer: SongYun was founded in 1985 and has been focusing on Go production for nearly 40 years. We hold multiple patents for producing Go pieces. Advanced technology, equipment, and strong production capacity are the basis for providing high-quality products. THE GO STONE SET INCLUDES: 361 single convex melamine stones, along with non-woven go board and stone storage bags for easy carrying and storage, making it very suitable for travel. The set is cost-effective, ideal for beginners, daily playing, Go clubs, or Go competitions.