Thank you for viewing! The size is approximately 7 centimeters. It's also a size that can be used as a coaster. I would be happy if you could arrange it for use on hats, bags, clothes, as a mark for your belongings, decorations, etc. (*^o^*) Since it is handmade, the size and shape may vary slightly. Also, since it is handmade by an amateur, please refrain from purchasing if you are concerned. The photos may appear slightly different from the actual color due to the effects of lighting. Thank you for your understanding. If you have any requests (number of pieces, changes to the color of the thread, etc.) or any questions, I will answer them in the comments section, so please feel free to ask.