32 PHOTO SLIDES ON 4 REEL DISCS: The Discovery Kids Space Projector features 4 discs of 8 slides each for a total of 32 slides! Use the slides with the stationary projector side: insert the disc an ... d you can project the images onto a wall. Manually rotate the reel to view the next slide. For best viewing results, use the projector in a dark room, and hold the projector close to the viewing surface. (Note: the disc protrudes slightly when inserted into the projector as shown in the photos). ADJUSTABLE STAND AND UNIQUE SPACE STATION DESIGN: With colors and details modeled after real life spaceship and observatory equipment, children will love the projector science theme! The orange stand is fully articulated, so that the projectors angle can be adjusted to your preferences.