---
product_id: 13146699
title: "Green Keeper Line M Up Fat Line Ball Alignment Tool"
brand: "proactive sports"
price: "NT$759"
currency: TWD
in_stock: true
reviews_count: 13
category: "Pro Active Sports"
url: https://www.desertcart.tw/products/13146699-green-keeper-line-m-up-fat-line-ball-alignment-tool
store_origin: TW
region: Taiwan
---

# Enhances stroke & green reading Improves aim precision Larger, easy-to-read alignment line Green Keeper Line M Up Fat Line Ball Alignment Tool

**Brand:** proactive sports
**Price:** NT$759
**Availability:** ✅ In Stock

## Summary

> ⛳ Align Like a Pro, Sink Like a Champ!

## Quick Answers

- **What is this?** Green Keeper Line M Up Fat Line Ball Alignment Tool by proactive sports
- **How much does it cost?** NT$759 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tw](https://www.desertcart.tw/products/13146699-green-keeper-line-m-up-fat-line-ball-alignment-tool)

## Best For

- proactive sports enthusiasts

## Why This Product

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

## Key Features

- • **Trusted by Golfers:** Highly rated tool that elevates your game and your style.
- • **Bold Fat Line Design:** Larger line for effortless alignment and confidence on the green.
- • **Perfect Your Putting Aim:** Visual guide ensures your stroke stays true every roll.
- • **Universal Fit & Easy Use:** Fits all golf balls and works seamlessly with medium line markers.
- • **Stroke-Enhancing Precision:** See your line stay straight with every perfect stroke.

## Overview

The Green Keeper Line M Up Fat Line Ball Alignment Tool by ProActive Sports is a plastic golf training aid designed to improve putting accuracy. Featuring a larger, easy-to-read line that wraps around the ball, it provides a clear visual guide to perfect your stroke and green reading. Compatible with medium line markers, this tool is a must-have for golfers seeking consistent, confident putting performance.

## Description

Product Description The FAT line by Line-M-Up gives you a visual guide when putting. When a good stroke is made, the line on the ball appears straight as it rolls. Sink more putts, and hit more fairways. From the Manufacturer The FAT line by Line-M-Up gives you a visual guide when putting. When a good stroke is made, the line on the ball appears straight as it rolls. Sink more putts and hit more fairways.

Review: Easy to use - This item is exactly as advertised. I wanted a ball marker I could use to draw a line around the entire circumference of a golf ball, and this marker allows me to do so easily. It also accommodates a “medium” line marking pen.
Review: Five Stars - Great golf ball line tool. I definitely like the "fat" line better than the standard line.

## Features

- Improves Aim
- Larger line makes it easier to read
- Improves stroke and green reading abilities
- Marker colors will vary

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00AY2DQ8W |
| Age Range (Description) | Adult |
| Best Sellers Rank | #255,792 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #626 in Golf Ball Markers |
| Brand | ProActive Sports |
| Brand Name | ProActive Sports |
| Color | Varies |
| Construction Type | Plastic |
| Customer Reviews | 4.1 4.1 out of 5 stars (67) |
| Date First Available | March 25, 2009 |
| Global Trade Identification Number | 00768567102536 |
| Item Dimensions LxWxH | 6.7 x 4.8 x 0.8 inches |
| Item Package Dimensions L x W x H | 7.52 x 5.67 x 1.61 inches |
| Manufacturer | ProActive Sports, Inc. |
| Material | Plastic |
| Model Name | Line M Up Fat Line Ball Alignment Tool |
| Number of Items | 1 |
| Package Weight | 0.02 Kilograms |
| Part Number | LMU02 |
| Sport | Golf |
| Suggested Users | unisex-adult |
| UPC | 768567102536 |
| Unit Count | 1.0 Count |
| Warranty Description | 90 day return policy |

## Product Details

- **Age Range (Description):** Adult
- **Brand:** ProActive Sports
- **Color:** Varies
- **Material:** Plastic
- **Sport:** Golf

## Images

![Green Keeper Line M Up Fat Line Ball Alignment Tool - Image 1](https://m.media-amazon.com/images/I/71ixKngDhUL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Easy to use
*by M***T on August 17, 2019*

This item is exactly as advertised. I wanted a ball marker I could use to draw a line around the entire circumference of a golf ball, and this marker allows me to do so easily. It also accommodates a “medium” line marking pen.

### ⭐⭐⭐⭐⭐ Five Stars
*by D***B on January 16, 2016*

Great golf ball line tool. I definitely like the "fat" line better than the standard line.

### ⭐⭐⭐⭐ Four Stars
*by C***. on June 7, 2017*

Exactly as expected

## Frequently Bought Together

- Green Keeper Line M Up Fat Line Ball Alignment Tool
- BIRDIE79 360-Degree Golf Ball Marker Alignment Tool Kit - Triple Line Stencil with 3-Color Pens and Gift Box
- Alignment Ball Mark - Putting Alignment Tool and Golf Ball Marker - Improves Accuracy - Rotates 360° for Aiming - USGA Compliant

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**Shop now:** [https://www.desertcart.tw/products/13146699-green-keeper-line-m-up-fat-line-ball-alignment-tool](https://www.desertcart.tw/products/13146699-green-keeper-line-m-up-fat-line-ball-alignment-tool)

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*Product available on Desertcart Taiwan*
*Store origin: TW*
*Last updated: 2026-01-24*