Welcome to Defender Canada! 
Harken
Harken Aluminum Mastbase Block - 57 mm (2 1/4") - 1988
Item: #1002843 | Part Number: 1988$341.75
Description
The Harken Aluminum Mastbase Block 57 mm (2 1/4") is a low-profile, lightweight halyard lead block designed for clean, efficient line handling at the mast base. Its compact aluminum construction allows multiple blocks to be grouped neatly in tight spaces, reducing clutter while delivering smooth, reliable performance.
Harken Aluminum Mastbase Block - 57 mm (2 1/4") - 1988 Item # 1002843
Description
Low-profile mastbase halyard lead blocks are lightweight and can be grouped in a small area at the mastbase.
Specifications:
- Sheave Diameter: 57 mm (2 1/4")
- Length: 81 mm (3 3/16")
- Weight: 6.2 oz (175 g)
- Height Above Track: 33 mm (1 5/16")