1. A scientific advanced system, formulated according to the laws of childrens learning and intellectual growth 2. Free chess, pick a topic and play 3. Octagonal chess piece design, easy to take 4. Intimate anti-lost design: provide blank chess pieces and digital stickers for backup 5. The anti-derailment design of the chess pieces solves the problem of misplacement of chess pieces caused by accidental touches 6. With handle, easy to carry 7. ABS material, smooth edges and corners without burrs
packing list: - a chessboard - One booklet - One manual - 81 number chess pieces - 12 blank chess pieces and number stickers
