---
product_id: 34881068
title: "Premium Sailing 16mm Single Pulley Micro Boat Block with O Ring, Part 404"
brand: "harken"
price: "130.45 DT"
currency: TND
in_stock: true
reviews_count: 3
url: https://www.desertcart.tn/products/34881068-premium-sailing-16mm-single-pulley-micro-boat-block-with-o
store_origin: TN
region: Tunisia
---

# 16mm size O-ring design 250 lb load Premium Sailing 16mm Single Pulley Micro Boat Block with O Ring, Part 404

**Brand:** harken
**Price:** 130.45 DT
**Availability:** ✅ In Stock

## Summary

> ⚓ Sail Smart, Sail Strong!

## Quick Answers

- **What is this?** Premium Sailing 16mm Single Pulley Micro Boat Block with O Ring, Part 404 by harken
- **How much does it cost?** 130.45 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/34881068-premium-sailing-16mm-single-pulley-micro-boat-block-with-o)

## Best For

- harken enthusiasts

## Why This Product

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

## Key Features

- • **Smooth Sailing:** Patented bearing system with stainless steel balls guarantees effortless operation.
- • **Sail Like a Pro:** Elevate your sailing experience with Harken's premium craftsmanship and reliability.
- • **Stay in Control:** Innovative O-ring design keeps your line secure during intermittent loading.
- • **Compact Powerhouse:** The 16mm size is perfect for high-tech dinghies, ensuring you never compromise on performance.
- • **Unmatched Strength:** With a maximum working load of 250 lbs (113 kg), this pulley is engineered for serious sailing.

## Overview

The HARKEN Premium Sailing 16mm Single Pulley Micro Boat Block with O Ring (Part 404) is designed for high-performance sailing, featuring a compact size ideal for small synthetic control lines, a robust maximum working load of 250 lbs, and an innovative O-ring to maintain line stability during use.

## Description

The 16mm is Harken’s smallest block. It is perfect for small synthetic control lines found on high-tech dinghies. The patented bearing system uses stainless steel balls in a captive grooved race and has a 250 lb (113 kg) maximum working load. 16mm Blocks have a lightweight design and a unique patented bearing system which uses stainless steel balls in a captive, grooved race. Very high working loads in an extremely lightweight block, with the best strength-to-weight ratios around. Use with small synthetic control lines found on high-tech dinghies. Low-friction Carbo Air blocks are lightweight, strong, reliable - and affordable. Companions to our popular Harken Big Boat blocks, these small, compact blocks have very high working loads for safe, easy trimming.

## Features

- The 16 mm is Harken’s smallest block
- Perfect for small synthetic control lines found on high-tech dinghies
- Patented bearing system uses stainless steel balls in a captive grooved race and has a 250 lb (113 kg) maximum working load
- The 404 uses an O-ring to keep the line in the sheave during intermittent loading

## Product Details

- **Brand:** HARKEN
- **Material:** Stainless Steel
- **Item dimensions L x W x H:** 4 x 2 x 1 inches
- **Bore Diameter:** 16 Millimeters
- **Item Weight:** 0.33 Ounces

## Images

![Premium Sailing 16mm Single Pulley Micro Boat Block with O Ring, Part 404 - Image 1](https://m.media-amazon.com/images/I/61-8FvKILqL.jpg)

## Available Options

This product comes in different **Style** options.

## Questions & Answers

**Q: Country of Origin? Where is this manufactured?**
A: The 16mm blocks are manufactured in the USA.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Excellent!
*by A***. on September 7, 2024*

These excellent small blocks are typical of the top tier quality Harken has been known for. I have been buying Harken blocks of various types for many decades, and their quality have always been the best!

### ⭐⭐⭐⭐⭐ Great addition to my Laser
*by A***9 on July 25, 2019*

Fantastic block for my Laser sailboat. Switched to a Cunningham system and needed one more block. Works like a charm.

### ⭐⭐⭐ 1 out of 2 runs smooth
*by B***. on May 9, 2024*

Order 2 and one of the blocks does not run smooth. I know this is the cheapest Harken block or even product you can buy but could’ve gotten a 4 pack of off brand micro blocks.

## Frequently Bought Together

- HARKEN Premium Sailing 16mm Single Pulley Micro Boat Block with O Ring, Part 404
- Harken 22mm Micro Block

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**Shop now:** [https://www.desertcart.tn/products/34881068-premium-sailing-16mm-single-pulley-micro-boat-block-with-o](https://www.desertcart.tn/products/34881068-premium-sailing-16mm-single-pulley-micro-boat-block-with-o)

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-05-18*