SIZE：4/4 3/4 1/2 1/4
| Scroll | Naturally dried more than 10 years grade AAAAA flamed maple |
| Top | Grade AA improted spruce |
| Back &Side | Grade AA Imported European flame Maple |
| Fingerboard | Improted premium ebony |
| Peg | Imported thickened rosewood |
| Tailpiece | Imported rosewood |
| Obverse and reverse screw | 14K gold-plated copper |
| Tuner | Copper |
| Bridge | France imported Grade A of Despiau |
| Sound post | Imported spruce |
| String | Imported nylon core imported steel wire string |
| Varnish | Fully handmade Koba painting (exclusive formula) |
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