36pcs bobbins with assorted colors sewing thread, 5pcs Bobbin Clamps, they do the job of keeping the thread ends secure when they are not in use Bobbin size: Size A, Class 15, can be applied for a variety of sewing machines like Bro-ther, Baby-lock, Jano-me, Ken-more, Sin-ger etc. Perfect for anyone just starting out with an embroidery machine or a sewing machine. Comes with a clear transparent bobbin case with each bobbin in a separate spot that is very organized. Plastic made with clear view is easy to see which color to choose and let your hand sewing in an orderly way. There are 36 bobbins which twined the 36 different colors threads and these bobbins also can be used to new bobbins after the threads were finished. It is an essential accessories for your sewing machine for handmade and patch the clothes. It's the best choice for you preparing gifts for your wife, mom, sister or friends