If your projector Does NOT have a focus motor in it, then this is the kit for you. This repair kit contains 1 link, 1 lock pin. This kit works with the these models of Kodak Carousel Slide Projectors 650, 650H, 700 & Ektagraphic B, E2. The most common cause for the failure of the slide tray to advance or reverse is the breakage of this small Link. It fits on the end of the solenoid actuator arm and is held in place by a Rivet. If your projector does HAVE a focus motor, then order: Kodak Carousel 4 pieces Repair Kit, Link & Gears. Please go to our other listing to find 4 pieces Repair kit. Download Repair manual provided with the repair kit.. Also watch youtube videos to how to repair your Kodak Carousel Slide Projector from this link: https://www.youtube.com/results?search_query=Kodak+Carousel+Slide+Projector+repair The replacement of these parts should have a moderate mechanical skills required.