51 mm Series 25 Stainless Curved Cheek Block
3/8" (8mm) to 5/8" (15mm) Line
These blocks are designed for the true offshore sailor looking for the ultimate in rugged dependability. Constructed of polished stainless steel cheeks and load straps makes them an excellent choice for installation at the masthead or other hard to service areas. Ball bearing sheaves ensures that the line will run smoothly.