How to judge fake goods?

Whether there is a METAL RING on the tube is the simplest way to judge a fake.

在管上是否有个金属环，是最简单的判断是否假货的方法。

When removing the ligature, you should see that there is a metal ring, which is genuine. Otherwise, it's fake.

The pitch of the fake is completely inaccurate.

8孔小萨 / 8-Hole LittleSax

11孔小萨 / 11-Hole LittleSax