The product is a lot of 10 vintage metal sewing machine bobbins with one hole, suitable for various sewing projects. These bobbins are essential accessories for a sewing machine, allowing for the storage and use of thread for stitching. With a classic design and sturdy metal construction, these bobbins are reliable and durable for all your sewing needs. Perfect for crafters or anyone looking to expand their sewing supplies, this collection of bobbins offers value and practicality.