Instead of having holes in the center, a shank button has a small loop or hole on the back that you thread your needle through when attaching the button to your clothing or other items. Shank buttons are useful when you want your buttons on clothing to have a little elevated appearance since they can also have a raised part in the back of the button where the hole is located.
In other words, the buttons do not rest flat on the clothing; rather, they rise just a little bit above the garment, giving it a really attractive appearance. Although attaching a shank button requires a somewhat different technique than attaching a flat button, with some research and practice, the process may be relatively straightforward.
The one feature that all shank buttons share is that they are slightly raised against the fabric rather than lying flat on it, giving the garment a touch of ambiance and class. Shank buttons can be made of a variety of materials and come in a wide variety of colors and sizes.
In addition, shank buttons are created very well, in part due to the loop or stem that the sewing thread must pass through, therefore they typically consist of materials that are durable and robust. In conclusion, purchasing shank buttons is a wise decision for many reasons, not the least of which is how wonderful they appear on your clothing.