Ronstan’s All Purpose (AP) blocks are a great all-round solution.WithAcetal polymersheaves this double block with swivel is available in 2 sizes.
Features:

316 Stainless Steel polished bearing races, load straps and head
Universal Captive LockTMswivel head can be fixed at 0, 90 or left free to swivel
Snap shackle adapters to suit are available in standard and trunnion styles
Low friction, 2 stage ball-bearing system provides consistent performance over the full load range
High static and dynamic load capacity
Light weight
Cheek cutouts for easy bearing maintenence

SKUSheave DiameterMax Rope DiameterMax Working LoadBreaking LoadWeight

RON-RF41200
40mm
10mm
600kg
1,200kg
135 grams

RON-RF51200
50mm
12mm
1,000kg
2,000kg
271 grams

Ronstan All Purpose Blocks
Ronstan All Purpose (AP) Blocks are built with self-lubricating and UV stabilised Acetal polymer sheaves. The block cheeks are impact modified, fibre reinforced and UV stabilised. The polished bearing races, load straps and head fittings are produced from marine-grade 316 stainless steel.
These blocks are the right choice for sheets, halyards and control line applications for cruising and racing -they provdie durability and a long service life.