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Ronstan Series 20 Micro Cheek Block

Cat.No:  4890 Sup. No:  RF20151

Availability: In stock

RRP: $18.13

our price $16.25
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  • Low friction
  • High static and dynamic load capacity
  • Lightweight
  • Double through-bolt mounting for maximum load capacity


  • Dinghy control lines
  • Dinghy vangs
  • Cunninghams
  • Traveller controls


  • Rope Diam.: 20 mm
  • Max. Rope Diam: 6mm
  • Max. Working Load: 250 kg
  • Max. Wire Diam: Not Suitable
  • Breaking Load: 550 kg
  • Weight: 14 g


  • Grade 316 stainless steel ball bearings
  • UV stabilised Acetal sheave
  • Grade 316 stainless steel load housing
  • Impact and UV resistant, fibre reinforced Nylon cheeks

Australia's largest marine accessories retailer. Serving boat owners since 1962. With sixteen big supermarkets and mail order departments Australia wide Whitworths Marine & Leisure offers the best service, convenient locations, a huge selection of quality products, and unbeatable prices.