This is one of the hardest threads for me to work with. It slides smoothly, when I can get it to slide. The problem? It's so incredibly thin I need tweezers to close my rings. I didn't have any on hand, so now I have no thumbnail, er, not much left over. I applaud anyone who has the courage to tat with superfine thread. The spool gives me plenty of thread to work with. I just hope I don't pull my hair out in the process. That small bit took a hour to do. I was afraid of snapping my thread so I gently pulled and tugged until I got those rings to close. It was easier to close a split ring than a regular ring.The only reason I was trying this out was to make a small enough motif to fit one of the molds for my next resin project. Unfortunately that is gonna be a no go.