Color Classification:
 
 A: Three-layer white plate (chopping frame + knife holder chopsticks)
 
   B: Three-layer white plate (water cup holder + knife holder chopsticks tube)
 
 C: Three plates of white plate (chopping frame + knife holder chopsticks)
 
 D: Three plates of white plate (water cup holder + knife holder chopsticks tube)
 
   E: Three plates of green plate (chopping plate holder + knife holder chopsticks tube)
 
 F: Three plates of green plate (water cup holder + knife holder chopsticks tube)
 
 G: Double-layer white plate (cutting plate holder + knife holder chopsticks tube)
 
 H: double-layer white plate (water cup holder + knife holder chopsticks tube)
 
   I: double green plate (chopping plate holder + knife holder chopsticks tube)
 
 j : double green disk (water cup holder + knife holder chopsticks tube)
 
material: metal