The product is a lot of 3 Kodak 140 Carousel Slide Projector Trays Transvue, designed for use with slide projectors. Made by Kodak, the trays have a capacity of 140 slides and feature slide retaining clips for secure storage and display. These custom bundle units are compatible with Kodak slide projectors and have a voltage of 120V, with a power consumption ranging from 100-149W. Manufactured in the United States, these trays are a convenient and reliable solution for organizing and showcasing your slide presentations.