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![Ronstan Nylatron Sheave Box - Single Upright Lead Block [RF453] Marine Safety | Accessories UPC: 791659928332](https://cdn.shopify.com/s/files/1/0499/1942/6726/products/55219XL.jpg?v=1605257700)
UPC: 791659928332
This results in unnecessary double cheeks between each sheave
Countdown repeat or Countdown and up options (for elapsed race time)
Ball Bearings: High compression strength carbon black Aceetal
Shaft Diameter:1"
Ronstan Nylatron Sheave Box - Single Upright Lead Block [RF453] Marine Safety | Accessories UPC: 791659928332Nylatron Sheave Box Single Upright Lead Block Lead blocks are a low profile solution for leading halyards or other rig sail controls back to cleats or jammers. When mounted in an inverted position, are frequently used as upright leads. Features: The external tabs can be formed to fit the spar profile before fastening Applications: Typically used in dinghy spars for control lines such as outhauls Materials: Nylatron sheave Grade 316 stainless steel
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