Horizontal double block

A block with two sheaves arranged side by side.

How to sign

Use Dominant 1-hand rotates, then dominant R-hand traces rope. The base or passive hand is Non-dominant curved-C forms two housings side by side. Set two small C-hand housings at the same height. Place the index in the first housing. Rotate once in each housing, then trace the rope through both. End with two horizontal sheaves and one continuous rope path. Show two small C-hand pulley housings side by side. Rotate the index in each, then trace the rope through both.