Spice up your reedmaking with these beautiful colors! 70 yards of strong cotton. Beautiful color combinations to make your reeds look visually appealing! These are small spools that hold 70 yard. The thread is a very strong cotton. If you are the kind of reed-maker who pulls really tight, we recommend you use our nylon thread, which is a bit stronger. This thread is ideal for those who want to teach their students (or themselves) not to pull too tight.