WTV-21B
Model: WTV-21BPanel: Natural air dried spruceBottom plate: B-grade natural air dried maple tiger patternFingerboard: imported ebonyMaqiao: Imported OBOT 5TAccessories: Chicken wing woodBow pole: 780 octagonal bow poleMusic case: AT-3 concave convex foam casePaint: resin paintAir drying period: 10 yearsApplicable audience: practicing and passing the violin exam