Ronstan's Series 20 All Purpose Blocks are an economical block of lightweight, durable construction. Stainless steel cheeks and Acetal sheaves ensure a long service life with virtually no maintenance. Hollow rivets accept fixing screws, shackles or can be used to add a becket for extra purchase.
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Spécifications
| Bearing type | Plain bearing | 
| Cordage recommandé – Ø Max (mm) | 5 | 
| Ø réas (mm) | 20 | 
| Sideplate material | Acier inoxydable | 
| Winch | Non | 
| Sheave material | UV stabilised acetal | 
| Charge de travail (kg) | 300 | 
| Charge de rupture (kg) | 600 | 
| Poids (g) | 20 | 
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