Description these are kaleidoscopic toys which are made of wood, durable and safe. Endoscopic tubes, they have good light transmission, they promote vision, grasping, intellectual, emotional development, the development of other skills, hand-eye coordination, etc. Specifications - color: yellow + blue 2 PCS. - Material: wood. Size: about 5.5x5x5cm / 2.16x1.97x1.97 inch. Kaleidoscopes are classic 18th century toys. 200 years later, it is still a toy for young people and children, it is the wonderful kaleidoscope of many people's childhood memories with the complex, symmetrical and colorful interior, with different patterns and colors rich with each rotation. It develops children's logic and creativity, and stimulates their curiosity and imagination. The kaleidoscope main body is made of wooden material, with colorful design and durable, not easy to break this colorful kaleidoscope is a great gift for children or friends, ideal as a birthday present for children, class reward, prize, party gift.