These balls are for the Handicraft Arrow Ball Clock, the Can You Imagine Time Machine Kinetic Ball Clock, and the Roll-O-Clock Ball Clock (European version) . This is a complete set of balls for these clocks. This is a great option: * If you are missing some of yours. * If yours are pitted, rusty, or dull. * You simply want to have a complete set of new, shiny (chrome) balls. These are all brand new balls. They are the correct sizes and weights to ensure your clock operates correctly. You will receive: 1 Large Black Ball 1 Small Black Ball 1 Large Chrome Ball 32 Small Chrome balls With regard to how many of the small chrome balls are included and used: The Arrow Clock's Original Instructions state: * "One bag contains 32 (or more) steel balls." These are the small chrome balls. * "30 balls are sufficient to run the clock." * "Use no more than 32." I will supply you with 32 of those small chrome balls; so, you have a few spares. However, place only 30-32 of them on the track. I have experienced that when I placed more than 32 on the track the extra weight of the extra balls presses harder on the balls that are down-hill on the return track, and can cause one of them to "pop-up" and fall off the track. Note: The Time Machine Clocks originally came with 31 of the small chrome balls. I will supply you with 32. Simply FYI: Please do not ever use a magnet to pick up or move any of these balls. That can magnetize them. Then, instead of rolling nicely down the ramps - they will "stick" to each other and not roll. Please understand: You are not buying a clock . You are only buying a set of Balls . The picture on the left simply shows where the balls sit on a clock. Please know: I will supply you with a tracking number so you can follow them throughout the shipping process. I usually ship items the same day you order it. I advertise my terms as, "one business day" just in case I am out doing something else that day. No Returns: These are brand new and there is nothing to break. I hand inspect every one before I send them out. International Shipping: I gladly ship internationally. Thank you for looking. Rick S.