Aclaine is acrylic fiber and easy to be felted compared to natural wool fiber Size is approx. 5cm4cm * Assembly is required (Bon bon maker is NOT included and requires Hamanaka Bon Bon Maker) Only supplied with Japanese instructions – What to prepare – Felting Needle Extra Fine (H441-023), Felting Mat (H441-015), or Acrane Starter Set (H441-047) Bon bon maker (3.5 cm in diameter) (H204-550 or H204-570) Scissors, perforations, bonds, chaco pen These tools above are NOT included in the kit. Please prepare separately.