Ronstan Upright Lead blocks are a low profile solution for leading halyards or other rig sail controls back to cleats or jammers.

Applications
•Typically used in dinghy spars for control lines

Materials
•U.V. stabilised Acetal sheave
•Grade 316 stainless steel load housing

SPECIFICATIONS:
Sheave Ø: 13 mm
Max. Rope Ø: 5 mm
Fastener Ø: 4.0 mm
Max Working Load: 250 kg
Breaking Load: 500 kg
Weight: 20 g