Handle Shape
| Shape number | Standard size | Hole size | Available materials | inspiration |
| A-1 | 42*55mm | 22-28mm | Resin；Acrylic；Wood；Ebontie；GR5ti；Aluminum；Copper | Architectural elements of the Forbidden City in China "Flying Eaves and Dougong" |
| A-2 | 42*65mm | 22-28mm | Resin；Acrylic；Wood；Ebontie；GR5ti；Aluminum；Copper | Architectural elements of the Forbidden City in China "Flying Eaves and Dougong" |
| A-3 | 41*65mm | 22-30mm | Architectural elements of the Forbidden City in China "Flying Eaves and Dougong" | Chinese traditional snack candied haws |
| A-4 | 42*45mm | 22-34mm | Architectural elements of the Forbidden City in China "Flying Eaves and Dougong" | From the classic style of chubby. |