Description: Size and Material: DIY 3D holographic TV Projection is made of wood and measures 13cmx9cmx10.5cm.DIY Assembly: Science Experiment Toys is provided as a material kit and needs to be assembled by yourself. It needs to be used in conjunction with other electronic devices to play holographic and provide children with an engaging interactive experience.Educational Toys: Early Educational Toys not only exercises children's hands on ability, but also helps them understand holographic technology and diffraction. This is a fun and educational toy that combines learning and play.Unique Design: The Childrens DIY Toys uses a panel with 1 viewing direction from front to back, creating the illusion of watching a mini TV with an "air" screen. The resulting image quality is sharper, providing a super exciting and surprising experience.Interactive use: After the Wooden Diy 3D Holographic Projection is assembled, it can be used in conjunction with to display holographic video. Just search for "holographic 180 " or "holographic ", place your phone over the holographic frame, and watch the illusion appear. Size Chart: 13cmx9cmx10.5cm/5.12inchx3.54inchx4.13inch Package Includes: 1 DIY HolographicTv Projection Toy Note: 1.This is not infant toy, please take away from children to avoid eating.2.Please allow slightly errors due to manual measurement and different monitors.