Garhauer Cheek Block Single Sheave High Load 

The 45-21SB  has a stainless steel body fitted with a 2 ¾ inch aluminium sheave. This is a series block with a flat base to suit. 

The 50-21SB  has a stainless steel body fitted with a 3 inch stainless steel sheave. This is a series block with a flat base to suit. 

The 60-21SB has a less obtrusive mounting base. The stainless steel body has a sleek design bolted down by 2 end bolts and a bolt through the middle of the sheave acompanied by a large flat stainless washer. The Aluminium sheave is 3 ¼ inch.