Brain Teaser Puzzles - Intelligence game originated from ancient China which called Kong Ming Lock. Wooden game with interesting logical thinking and perfect for development of the brain. Nice challenge to both adults and kids. Perfect gift as family game and gift for your children.

COMPACT SIZE - Product Dimensions: 1.8 x 1.8 x 1.8 inches (4.5 x 4.5 x 4.5 cm). Weight: 0.04 lbs (20 g). A stylish addition to a desk or table, worthy of display! This one is so attractive that it can easily be used as a decoration in a study room, family room, living room, desk, office, or waiting room.

RECYCLABLE MATERIAL & HANDMADE WOOD - Assemble the different wooden pieces into a diamond shape. Precision assemble non-identical pieces into a 3D shape. These brain teaser toys will challenge your intellect by stimulating amazing creativity. It requires careful observation and thinking, analyze its internal structure in the assembly process.

UNIQUE - Each puzzle cube is completely unique, handcrafted from premium grade, completely organic wood by the finest master craftsmen using only time-honored traditional methods and techniques. It is made of sustainable wood with environmentally friendly non-toxic paints.