---
product_id: 71669157
title: "RonstanSeries 55 Ratchet Orbit Block - Single - Swivel Head - Auto & Manual"
brand: "ronstan"
price: "€ 607.75"
currency: EUR
in_stock: true
reviews_count: 4
url: https://www.desertcart.nl/products/71669157-ronstanseries-55-ratchet-orbit-block-single-swivel-head-auto-manual
store_origin: NL
region: Netherlands
---

# 360° swivel head for versatile movement Durable powder-coated black finish Precision ratchet mechanism RonstanSeries 55 Ratchet Orbit Block - Single - Swivel Head - Auto & Manual

**Brand:** ronstan
**Price:** € 607.75
**Availability:** ✅ In Stock

## Summary

> ⚓ Master your rigging game with Ronstan’s sleek, swivel-smart ratchet block!

## Quick Answers

- **What is this?** RonstanSeries 55 Ratchet Orbit Block - Single - Swivel Head - Auto & Manual by ronstan
- **How much does it cost?** € 607.75 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/71669157-ronstanseries-55-ratchet-orbit-block-single-swivel-head-auto-manual)

## Best For

- ronstan enthusiasts

## Why This Product

- Trusted ronstan brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built to Last:** Robust powder-coated plastic resists wear and weather
- • **Full Range Motion:** Swivel head rotates 360° to adapt seamlessly to any angle
- • **Effortless Control:** Smooth mechanical ratchet for precise tensioning every time
- • **Trusted Brand Legacy:** Ronstan quality with warranty backing your investment
- • **Compact & Lightweight:** Only 0.08 kg and 15 cm length—powerful performance without bulk

## Overview

The Ronstan Series 55 Ratchet Orbit Block features a fixed ratchet mechanism combined with a 360° swivel head, crafted from durable powder-coated plastic. Compact and lightweight at 15 cm and 0.08 kg, it offers precise mechanical operation ideal for professional sailing or rigging applications. Backed by Ronstan’s trusted brand warranty, this single block is engineered for smooth, reliable performance in demanding environments.

## Description

RonstanSeries 55 Ratchet Orbit Block - Single - Swivel Head - Auto & Manual

## Features

- Great Product

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Color | Black |
| Brand | Ronstan |
| Material | Plastic |
| Item Length | 15 Centimeters |
| Item Weight | 0.08 Kilograms |
| Item Package Quantity | 1 |
| Head Style | Fixed Ratchet |
| Finish Type | Powder Coated |
| Operation Mode | Mechanical |
| Manufacturer | Ronstan |
| Global Trade Identification Number | 09316800440375 |
| Item Package Dimensions L x W x H | 5.51 x 3.54 x 1.57 inches |
| Package Weight | 0.24 Kilograms |
| Item Dimensions  LxWxH | 2 x 3 x 1 inches |
| Brand Name | Ronstan |
| Warranty Description | Warranty |
| Model Name | RF56100 |
| Suggested Users | unisex-adult |
| Number of Items | 1 |
| Part Number | 56100 |
| Model Year | 2015 |
| Included Components | Great Product |
| Size | One Size |

## Product Details

- **Color:** Black
- **Brand:** Ronstan
- **Material:** Plastic
- **Item Length:** 15 Centimeters
- **Item Weight:** 0.08 Kilograms

## Images

![RonstanSeries 55 Ratchet Orbit Block - Single - Swivel Head - Auto & Manual - Image 1](https://m.media-amazon.com/images/I/61gI5SOfDeL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Satisfied
*by I***N on October 9, 2024*

Nice smooth operation. In auto mode, works very nicely for the mainsheet on my sunfish.

### ⭐⭐⭐⭐ Auto Ratchet block
*by D***D on December 3, 2022*

It's a very light piece of hardware. I hope it holds up for a J24 spinnaker sheet trimming block... we'll see

### ⭐⭐⭐⭐⭐ only regret, not buying this sooner
*by C***N on August 16, 2023*

This has been an awesome edition to my sunfish as the main block. I was using a worn out competitor and my hands hurt terribly after sailing on windy days. This block has great teeth that hold and give your hands a break, but will allow you to let out the mainsheet without problems.Worth every penny.

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**Shop now:** [https://www.desertcart.nl/products/71669157-ronstanseries-55-ratchet-orbit-block-single-swivel-head-auto-manual](https://www.desertcart.nl/products/71669157-ronstanseries-55-ratchet-orbit-block-single-swivel-head-auto-manual)

---

*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-01-24*