| 摘要 |
A stair rail assembly and a method of making a stair rail assembly is disclosed. The stair rail assembly comprises a stair rail having a first end and a cross section, a ball having a spherical surface, and a connector having a first surface, a concave surface and a connector cross section which is the same as the cross section of the stair rail. The first end of the stair rail is rigidly attached to the first surface of the connector, the concave surface of the connector is rigidly attached to a segment of the spherical surface of the ball, such that the concave surface is covered by the segment, and the connector is adjustably connected to the ball along any direction.
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