U Bracket B-Blue Pair
U Bracket B is usually used as the structural support or connection point for shafts, timing pulley 18T, timing pulley 62T, timing pulley 90T and so on.
-With seven 8mm center holes that can be attached with 8mm shaft or bearings
-44 x 4mm holes which are compatible with most Makeblock components
-High-strength aluminum extrusion with anodized surface and 3mm of thickness designed for a long time service