This is a mixed bag of ten little gears. Do you call them cogs or gears or sprockets ? They come in a variety of colours and sizes. Please look at all the photos to get an idea of the selection. You will receive ten pieces at random but each will contain a good range of sizes and finishes. They are all metal and range from approx 6 - 25mm. These are the same gears I have used for my Little Bots. A bag of ten should be enough for two or three little robots. 

💙 SIZE : 12 pieces measuring between 6 and 25mm across. May contain small clock hands as well.