Name: New Portable Magnetic Chess Chinese Go International Children's Wisdom Toy Chess Material: MagneticChess board Size: 19.9 x 16.9 x 0.6cm / 7.8" x 6.7" x 0.2"Weight: 160 g / 0.4 lbs Features: 1. It's of wallet style design and magnetic， can take it anywhere conveniently， and it's elegant. 2. Playing chess can make children calm down to concentrate on doing things . 3. It can improve children's wisdom and memory ability. 4. It can develop the ability of children's logical thinking and calculating ability. 5. It can develop children's awareness of competition and compressive， then they will have a good state of mind .