---
product_id: 48440358
title: "OTOOLWORLD Watch Case Open Ball Friction Ball Watch Case Open Ball Battery Change"
brand: "otoolworld"
price: "€ 31.29"
currency: EUR
in_stock: true
category: "Otoolworld"
url: https://www.desertcart.gr/products/48440358-otoolworld-watch-case-open-ball-friction-ball-watch-case-open
store_origin: GR
region: Greece
---

# Inflatable air core for customizable pressure 2.5-inch diameter precision grip Friction ball for effortless case opening OTOOLWORLD Watch Case Open Ball Friction Ball Watch Case Open Ball Battery Change

**Brand:** otoolworld
**Price:** € 31.29
**Availability:** ✅ In Stock

## Summary

> ⚙️ Unlock your watch’s secrets with a twist—DIY style!

## Quick Answers

- **What is this?** OTOOLWORLD Watch Case Open Ball Friction Ball Watch Case Open Ball Battery Change by otoolworld
- **How much does it cost?** € 31.29 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/48440358-otoolworld-watch-case-open-ball-friction-ball-watch-case-open)

## Best For

- otoolworld enthusiasts

## Why This Product

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

## Key Features

- • **Universal Compatibility:** Ideal for threaded watch backs like Casio’s six-slot covers, making battery changes a breeze.
- • **Compact & Portable Design:** Small, lightweight, and easy to handle—perfect for on-the-go watch repairs.
- • **Customizable Air Pressure:** Inflate the ball yourself with a standard pump needle for optimal grip and control.
- • **Effortless Watch Case Opening:** Twist off stubborn backs with a simple press-and-turn motion using the friction ball.
- • **DIY Essential for Professionals:** Trusted by watch enthusiasts and pros alike to save time and avoid costly trips to the jeweler.

## Overview

The OTOOLWORLD Watch Case Open Ball is a 2.5-inch diameter inflatable friction ball designed to effortlessly unscrew watch case backs. Lightweight and portable, it offers customizable air pressure for a secure grip, making it an essential tool for professional and DIY watch battery replacements. Highly rated and compatible with common threaded watch backs, it’s a must-have for millennial managers who value efficiency and hands-on solutions.

## Description

OTOOLWORLD Watch Case Open Ball Friction Ball Watch Case Opener Ball Battery Change

## Features

- The ball is already full of air + 1 ball needle
- Great for opening watch cases , Hold the watch in one hand and in the other hand, press the friction ball onto the back of the watch.
- Start twisting to unscrew the watch back.
- 2-1/2 inches in diameter
- and you can fill air by the basketball pump yourself if need full air

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07417BNF9 |
| Additional Features | Portable |
| Best Sellers Rank | #35,723 in Clothing, Shoes & Jewelry ( See Top 100 in Clothing, Shoes & Jewelry ) #28 in Watch Repair Tools & Kits |
| Brand | DIY Crafts |
| Brand Name | DIY Crafts |
| Closure Type | Snap |
| Color | gold |
| Customer Reviews | 4.2 out of 5 stars 1,315 Reviews |
| Finish Types | Polished |
| Inner Material | Faux Leather |
| Item Dimensions D x W x H | 3.5"D x 5"W x 4.53"H |
| Item Weight | 495 Grams |
| Jewelry Storage Type | Jewelry Case |
| Manufacturer | OTOOLWORLD |
| Manufacturer Part Number | diy_product_B07417BNF9 |
| Material | Plastic |
| Material Type | Plastic |
| Model Number | diy_product_B07417BNF9 |
| Mounting Type | Table Top |
| Number of Compartments | 2 |
| Number of Drawers | 1 |
| Number of Items | 1 |
| Occasion Type | Birthday, Engagement, Mother's Day, Wedding |
| Recommended Uses For Product | Watch repair |
| Shape | Cylindrical |
| Special Feature | Portable |
| Style | Open Ball |
| Style Name | Open Ball |
| Target Audience | Women |
| UPC | 695288514341 |
| Unit Count | 1 Count |

## Product Details

- **Brand:** DIY Crafts
- **Color:** gold
- **Finish Type:** Polished
- **Material:** Plastic
- **Product Dimensions:** 3.5"D x 5"W x 4.53"H
- **Recommended Uses For Product:** Watch repair
- **Shape:** Cylindrical
- **Special Feature:** Portable
- **Style:** Open Ball
- **Target Audience:** Women

## Images

![OTOOLWORLD Watch Case Open Ball Friction Ball Watch Case Open Ball Battery Change - Image 1](https://m.media-amazon.com/images/I/61gXliQXl2L.jpg)

## Available Options

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

## Frequently Bought Together

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**Shop now:** [https://www.desertcart.gr/products/48440358-otoolworld-watch-case-open-ball-friction-ball-watch-case-open](https://www.desertcart.gr/products/48440358-otoolworld-watch-case-open-ball-friction-ball-watch-case-open)

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*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-08-31*