Filters
Dice Box - unknown

3D Packing / Wood

Designer: unknown
Maker: mi-toys

IQ FIT - The Z Challenge - Y Gong Yong Ming

2D Packing / Wood

Designer: Y Gong Yong Ming
Maker: mi-toys

IQ FIT - The Ultimate Challenge - Y Gong Yong Ming

2D Packing / Wood

Designer: Y Gong Yong Ming
Maker: mi-toys

IQ FIT - The T Challenge - Y Gong Yong Ming

2D Packing / Wood

Designer: Y Gong Yong Ming
Maker: mi-toys

Sliding Block Puzzle Lock #1 - unknown

Take-apart / Wood

Designer: unknown
Maker: mi-toys

Sliding Block Puzzle Lock #2 - unknown

Take-apart / Wood

Designer: unknown
Maker: mi-toys

Puzzle Drum - unknown

Disentanglement

Designer: unknown
Maker: mi-toys