Snap tape is great for long expanses where you need a closure. Using snap tape will save you loads of time. The beauty of it is that you get a strip of snaps that are sewn on like you would sew a trim. Because it is sewn on as a strip it is less noticeable than if you were to apply each snap individually.
These are plastic snaps. Good for pillows or clothing where you do not want to add stiffness. Currently available in black only. The snaps are 1/4" in diameter with 1" between them. The tape is 3/4" wide.