This is a set of 20 small shuttle bobbins. It's also possible to change to 10 bobbins for 6500 yen. The gold wire on the metal rod inside is not included. Approximately 17.5cm wide, 2.2cm tall, and 1.3cm deep. Some have numbers written on them or have faded colors, but please understand that these are used items and only purchase if you are okay with this. Thank you for looking.