Exodus 26:22-25

22And for the rear of the tabernacle westward you shall make six frames.

23And you shall make two frames for corners of the tabernacle in the rear;

24they shall be separate beneath, but joined at the top, at the first ring. Thus shall it be with both of them; they shall form the two corners.

25And there shall be eight frames, with their bases of silver, sixteen bases; two bases under one frame, and two bases under another frame.