---
product_id: 646281153
title: "Weight Stack Pin and Spring Collar Weight Stack Extender Pin Commercial and Home Gym Accessories for Cable Tower and Functional Trainer Machine"
brand: "fnktek"
price: "€ 52.03"
currency: EUR
in_stock: true
url: https://www.desertcart.de/products/646281153-weight-stack-pin-and-spring-collar-weight-stack-extender-pin
store_origin: DE
region: Germany
---

# Fits 10mm or 8mm pin diameters Solid steel for durability Adds up to 130 lbs extra weight Weight Stack Pin and Spring Collar Weight Stack Extender Pin Commercial and Home Gym Accessories for Cable Tower and Functional Trainer Machine

**Brand:** fnktek
**Price:** € 52.03
**Availability:** ✅ In Stock

## Summary

> 🏋️‍♀️ Unlock Next-Level Strength Without New Gear!

## Quick Answers

- **What is this?** Weight Stack Pin and Spring Collar Weight Stack Extender Pin Commercial and Home Gym Accessories for Cable Tower and Functional Trainer Machine by fnktek
- **How much does it cost?** € 52.03 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.de](https://www.desertcart.de/products/646281153-weight-stack-pin-and-spring-collar-weight-stack-extender-pin)

## Best For

- fnktek enthusiasts

## Why This Product

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

## Key Features

- • **Built to Last:** Crafted from solid steel for unmatched strength and longevity
- • **Precision Fit:** Available in 8mm and 10mm diameters to perfectly match your equipment
- • **Compact & Versatile:** Ideal for both home gyms and professional setups, enhancing any cable tower or functional trainer
- • **Maximize Your Gains:** Add up to 130 lbs extra resistance without upgrading your machine
- • **Effortless Weight Adjustment:** Quickly insert and remove pin for seamless workout flow

## Overview

The FNKTEK Weight Stack Pin and Spring Collar is a premium steel accessory designed to extend your gym machine’s weight capacity by up to 130 pounds. Compatible with 8mm and 10mm pin diameters, it fits most cable towers and functional trainers, enabling smooth, safe, and precise weight adjustments. Perfect for home and commercial gyms, this durable extender lets you push past plateaus without investing in new equipment.

## Description

Weight Stack Pin and Spring Collar Weight Stack Extender Pin Commercial and Home Gym Accessories for Cable Tower and Functional Trainer Machine

## Features

- PRODUCT USE: Weight stacking pins are suitable for home and professional fitness equipment. Simply insert it into the weight stacker and gradually add weight to the sleeve as needed for your workout. Enhance your workout and easily achieve your fitness goals.
- PACKAGE CONTENT: Package includes a weight stacking pin and a spring ring. The weight stacking pin sleeve is long enough and designed to fit a 2 inch Olympic weight plate to add extra weight. If your machine can no longer expand the weight on its own, it's much better to use our weight stacking pin than to buy a new machine.
- PREMIUM QUALITY MATERIALS:Weight stacking pins are made of sturdy solid steel for safety, reliability, resistance to bending and long life. Up to 130 pounds of extra weight can be added to the equipment to ensure that your muscles are constantly being challenged in new ways!
- BUYING GUIDE: Our weight stacking pins are available in 5/16 inch (8 mm) and 3/8 inch (10 mm) diameter pins. Please note that the 8mm pins are for fitness equipment with a 10mm diameter and the 10mm pins are for fitness equipment with a 12mm diameter. Before purchasing, please measure the cable stacking pin diameter to select the appropriate size for your fitness equipment.
- RELIABLE GYM ACCESSORY: This pin extender fits snugly into the weight rack of your gym machine, ensuring a safe and stable weightlifting workout. One thing to keep in mind is the distance from the hole of the insert to the floor is appropriate to put the weight plates on.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Item Package Dimensions L x W x H | 13.19 x 2.95 x 2.95 inches |
| Package Weight | 0.83 Kilograms |
| Brand Name | FNKTEK |
| Warranty Description | 1 Year |
| Model Name | chaxiaogan-10-110 |
| Color | Black |
| Material | ‎Metal |
| Suggested Users | unisex-adult |
| Manufacturer | FNKTEK |
| Included Components | ‎Weight Stack Pin+Clip, Spring Collar |
| Size | Rod Dia:10mm Length:110mm |

## Images

![Weight Stack Pin and Spring Collar Weight Stack Extender Pin Commercial and Home Gym Accessories for Cable Tower and Functional Trainer Machine - Image 1](https://m.media-amazon.com/images/I/61MJmMzB-ZL.jpg)

## Available Options

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

## Frequently Bought Together

- FNKTEK Weight Stack Pin and Spring Collar Weight Stack Extender Pin Commercial and Home Gym Accessories for Cable Tower and Functional Trainer Machin
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**Shop now:** [https://www.desertcart.de/products/646281153-weight-stack-pin-and-spring-collar-weight-stack-extender-pin](https://www.desertcart.de/products/646281153-weight-stack-pin-and-spring-collar-weight-stack-extender-pin)

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*Product available on Desertcart Germany*
*Store origin: DE*
*Last updated: 2026-03-02*