This is a black silk streamer that changes into rainbow colors with just the shake of a wrist. Or do it in reverse so a multi-color streamer becomes black. Jeff McBride demonstrates this in one of his popular Magic on Stage videos. Use it with our Professional Magic Painting as a way to get colors to appear. It’s great with the Rainbow House. Use it in a stage act for a quick visual color change. The streamer is approximately 4.5' long, and made of silk. This particular silk is smooth in working and easy enough for a beginner to master in a matter of minutes. $19.00.