Description: This is an educational DIY toy, which contributes to developing children's intellectual ability, innovative thinking, hands-on ability and helps children develop their interest in science. You can see the three-dimensional effect without wearing 3D glasses produced by this product using holographic projection technology. Made of plastic and wood material, it is eco-friendly and safe. The length of finished product is 13cm, the width is 13cm and the height is 5.5cm. DIY 3D holographic projection toy is a wonderful teaching equipment for student science and technology education. Item Name: Material Package Material: Plastic,Wood Difficulty Level: Medium Appropriate Age: Over 6 years old Features: Safe, Reliable, Creative Size Details: Finished Product: 13cm x 13cm x 5.5cm or 5.12" x 5.12" x 2.17" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Game Introduction: Find the 3D holographic video, put the phone under the projector and find a suitable angle to play it. Package Includes: 1 Set of Material Package (Including Glue) Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.