18mm, 20mm, 23mm, 25mm, 30mm, 32.5mm, 35mm, 40mm, 50mm, 60mm, 70mm, 80mm, 90mm, 100mm, 120mm. Craft accessories, gifts. 【Material】: artificial crystal. Play with it personally and learn to practice (like Hu Qizhi's performance on the Chinese talent show).
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