When sourcing Japanese fans (Sensu or Uchiwa), the quality of the ribs (frame) and the leaf (surface) is paramount. For the ribs, prioritize natural bamboo that has been treated for pest resistance and flexibility to prevent snapping. For the leaf, choose between high-grade Washi paper, which offers a traditional matte texture and durability, or silk/polyester fabrics for a more vibrant, glossy finish. Ensure the pivot pin (Kaname) is made of durable metal or high-density plastic to withstand frequent opening and closing.