Pottery Tools: 5 Types of Sitta (Bisque-Fired) 1. For sake cups, etc. Mouth 50, Base 110, Height 110, Weight 400g 2. For teacups, etc. Mouth 60, Base 120, Height 135, Weight 610g 3. For small bowls, etc. Mouth 80, Base 125, Height 130, Weight 610g 4. For rice bowls, etc. Mouth 110, Base 115, Height 100, Weight 630g 5. For tokkuri (sake bottles), kyusu (teapots), etc. Mouth 120, Base 150, Height 110, Weight 1000g How to Use: 1. Apply clay to the mouth and base, and wrap clay around the mouth. 2. Place the sitta on the potter's wheel and secure with clay. 3. Shave the surface of the mouth and create the core. 4. Apply water and press to shave. These have been used for many years. I no longer need them, so please, someone use them.