specification:
1. Environmentally friendly high-quality materials. Very classic and very interesting.
2. Because it hides very mysterious mathematical and physical principles, it is easy to separate in a short time and difficult to reassemble.
3. It is beneficial to change the way of thinking and improve wisdom.

Type: Kong Ming Lock
Material: Beech
Features: educational toys, no burrs, anti-stress, durable
Length: 6cm / 2.36 inches, width: 6cm / 2.36 inches, height: 6cm / 2.36 inches (approximately)

Material: Beech
Applicable gender: neutral
Applicable age: general
Wooden building block type: building block