Once again we have more choices of colors on bridle line. We stock 100 and 170 pound and sell it by the foot.
General rule of thumb is to allow 15 - 18 feet per bridle ("normal" dual line stunt kite). For leaders we like them about 3 feet long (if you're serious into rolling up you may want to go longer) so plan on about 7 feet per set.
As my eyes aren't as good as they used to be I generally go with a high visibility color (yellow or red) for my leaders. Makes those occasional tip wraps easier to untangle ... just a thought.
