Children could enjoy the play of hands and fingertips, stimulating the whole brain when viewing the images. This toy is sure to develop intelligence and to bring fun to children! Note: Child under 3 years old playing should be accompanied by adults. Package includes: 1 set of sliding projectors Notes: 1.Due to the light and screen difference, the item's color may be slightly different from the pictures. 2.Please allow slight dimension difference due to different manual measurement. 3.If you have any questions or have problems with the products you received, please contact us in time.