Same info was posted in the combat section.
I've gotten a stock of Black and Orange streamers.. Material is similar to flagging tape, but is cut 1-3/8 in. (34-35mm) so it is suitable for Speed Limit, F2D, and Fast. The greater width cuts down on the streamer wrapping up in the prop and makes the cuts much easier to see. It doesn't break at the knot, and will cut with a solid wing hit(usually). One roll makes 30-40 streamers, depending on length. Current price is $13 a roll. Best to save it for contests and use the plastic stuff for practice.
Merry Christmas and Happy New Year
Phil Cartie