Double slotted heddles come usually with different numbers of slots across the heddle. But this one, our original design, comes with two sections. It makes really nice bands that look like two bands together. Since it is a couple of 5 pattern strings its very fast. The band above is all wool from my favorite wool mill, Paces vilnafabrika. They wash the wool in the traditional way, pond water and some salt. That way it preserves 70% of the lanolin. The greatest part about the wool is in this. It is what makes it warm, antibacterial/microbial and repels dirt and water. Very hard to find quality wool like that in many places! Addtionally this mill uses natural dye. Its the same wool that comes in our weaving kits.