This chess set is a great way to challenge yourself and have fun with friends and family. Magnetic effects keep these pieces in place and not connected and attracted to each other. It is suitable for all ages to help them learn and grow better. The storage bag is easy to carry and store. Specifications: Name: Magnetic Effect chess Suitable age :9 years old and above Number of players: Multiplayer mode Material: Sponge paper magnet Packing List 1: Game Magnet * 20 Game * 1 Game sponge * 1 Play rope * 1 Magnetic storage bag *1 or Packing List 2: Game Magnet *20 Game * 1 Play rope * 1 Note: 1.Due to the different monitor and light effect, the actual color of the item might be slightly different from the color which is showed on the pictures. 2.Please forgive 1 cm/0.39"-3 cm/1.18" measuring deviation due to manual measurement.