---
product_id: 103968129
title: "50mm Synchro Block Single, 990 lb Working Load Limit, Accommodates 1/4\" - 3/8 Lines, High-Density Free-Spin Bearing, Traveler Compatible - 29925001BK"
brand: "lewmar"
price: "239.39 DT"
currency: TND
in_stock: true
url: https://www.desertcart.tn/products/103968129-50mm-synchro-block-single-990-lb-working-load-limit-accommodates
store_origin: TN
region: Tunisia
---

# Stainless Steel Strap Glass Fibre Reinforced Tool-Free Mechanism 50mm Synchro Block Single, 990 lb Working Load Limit, Accommodates 1/4" - 3/8 Lines, High-Density Free-Spin Bearing, Traveler Compatible - 29925001BK

**Brand:** lewmar
**Price:** 239.39 DT
**Availability:** ✅ In Stock

## Summary

> ⚓ Elevate Your Sailing Game with Effortless Precision!

## Quick Answers

- **What is this?** 50mm Synchro Block Single, 990 lb Working Load Limit, Accommodates 1/4" - 3/8 Lines, High-Density Free-Spin Bearing, Traveler Compatible - 29925001BK by lewmar
- **How much does it cost?** 239.39 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/103968129-50mm-synchro-block-single-990-lb-working-load-limit-accommodates)

## Best For

- lewmar enthusiasts

## Why This Product

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

## Key Features

- • **Innovative Design:** Features a tool-free sliding swivel locking mechanism for effortless adjustments.
- • **Smart Engineering:** Stiff glass fibre reinforced cheeks prevent lines from wedging, ensuring smooth operation.
- • **Seamless Integration:** Easily fits into your existing setup, making it a must-have for any boating enthusiast.
- • **Unmatched Durability:** Crafted with a stainless steel strap for enhanced strength and longevity.
- • **Lightweight Yet Strong:** Designed for optimal performance without the bulk, perfect for the modern sailor.

## Overview

The Lewmar 29925001BK 50Mm Sync Block Single Bk Multi is engineered for superior strength and longevity, featuring a stainless steel strap and innovative tool-free locking mechanism, making it an essential addition for any serious sailor.

## Description

Lewmar'S Synchro Blocks Are Engineered For Speed, Efficiency And Superior Handling. We Use A Combination Of Scientifically Optimised Block Geometry, A Free-Spin Bearing And Self-Aligning Head To Reduce Friction And Increase Efficiency By Up To 40%, Over Budget Blocks On Mainsheet Systems. Each Component Is Perfectly Synchronised With The Movement Of The Rope, Providing You With An Easier, Smoother Transfer Of Power From Deck To Sail And Less Wear On Your Rope.

## Features

- Stainless Steel Strap For Improved Strength And Longer Service Life.
- Stiff Glass Fibre Reinforced Cheeks To Prevent Lines From Wedging.
- Innovative design with “tool-free” sliding swivel locking mechanism.

## Images

![50mm Synchro Block Single, 990 lb Working Load Limit, Accommodates 1/4" - 3/8 Lines, High-Density Free-Spin Bearing, Traveler Compatible - 29925001BK - Image 1](https://m.media-amazon.com/images/I/71SHN2RzylL.jpg)

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.tn/products/103968129-50mm-synchro-block-single-990-lb-working-load-limit-accommodates](https://www.desertcart.tn/products/103968129-50mm-synchro-block-single-990-lb-working-load-limit-accommodates)

---

*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-04-22*