This Luban Lock puzzle set offers four distinct styles of interlocking wooden brain teasers, providing a classic challenge for children aged 6 to 12. Each box contains 200 pieces, with every puzzle individually packaged in an OPP bag for easy distribution. The compact size of each puzzle is 5x5x5 centimeters, making it a portable and engaging activity for developing problem-solving skills and spatial reasoning. These puzzles are ideal for use in classrooms, party favors, or as a fun stocking stuffer. This item is sold wholesale by the box.