Now with Ceramic ball bearings!
SBS-1 Single Block with Shackle
Body Length - 17.5 mm
Length including Shackle - 23 mm
Width - 10.4 mm
Body Thickness - 5.1 mm
Thickness across Shackle - 8 mm
Sheave Diameter - 7.3 mm
Maximum Line Size - 2 mm
Weight - 2 grams
This drawing shows the advanced technical features of the Hales Micro precision pulley blocks for radio sailing.