![Ronstan Series 30 Utility Block – Cheek, Curved Base [RF285]](https://www.apartship.com/wp-content/uploads/2025/4/1745803928/ronstan-series-30-utility-block-cheek-curved-base-rf285-1745803932.webp)
Description
Series 30 Utility Block- Cheek, Curved Base
Features:
- Lightweight durable construction
- Economical
- Maintenance free
Product Information:
Stainless steel cheeks and Acetal sheaves ensure a long service life with virtually no maintenance.
Applications:
- Vang, cunningham and trapeze retriever systems on dinghies
- Leech line tackles, bunk adjusters etc on larger yachts
Materials:
- U.V. stabilized Acetal sheaves
- Grade 316 stainless steel cheeks
![Ronstan Series 55 Ratchet Mount Orbit Block – Fiddle Becket Swivel [RF56510]](https://www.apartship.com/wp-content/uploads/2025/4/1745803850/ronstan-series-55-ratchet-mount-orbit-block-fiddle-becket-swivel-rf56510-1745803854.webp)
![Barton Marine Size 0 20mm Plain Bearing Pulley Block Stand Up Block [N00170]](https://www.apartship.com/wp-content/uploads/2025/4/1745803739/barton-marine-size-0-20mm-plain-bearing-pulley-block-stand-up-block-n00170-1745803743.webp)
![Barton Marine Size 0 20mm Plain Bearing Pulley Block Single Swivel w/o Shackle [N00190]](https://www.apartship.com/wp-content/uploads/2025/4/1745803739/barton-marine-size-0-20mm-plain-bearing-pulley-block-single-swivel-w-o-shackle-n00190-1745803743.webp)
![Ronstan Series 50 All Purpose Block – Fiddle – Becket – Cleat [RF51530]](https://www.apartship.com/wp-content/uploads/2025/4/1745803850/ronstan-series-50-all-purpose-block-fiddle-becket-cleat-rf51530-1745803854.webp)