This is a multi-colored silk streamer that changes into solid black with just the shake of a wrist. Or do it in reverse so a black streamer becomes multi-colored. Use it in a stage act for a quick visual color change. The streamer is approximately 4 feet long, and 6 inches wide, made of silk. This particular silk is smooth in working and easy enough for a beginner to master in a matter of minutes. Great in combination with the Magic Coloring Book! $15.