Pottery Tool: Sitta (Bisque) For single-flower vases, tsurukubi (crane-neck) vases. Mouth: 123, Base: 128, Height: 210, Weight: 1250g How to use: 1. Apply clay to the mouth and base, then wrap clay around the mouth. 2. Place the sitta on the potter's wheel and secure it with clay. 3. Scrape the surface of the mouth and create a core. 4. Apply water and press to shape and scrape. The hole in the body of the sitta is for scraping the inside of the foot. Tapping it produces a resonant sound, indicating the thickness. This tool has been used for many years in a pottery class. It is no longer needed, so please, someone use it.