---
product_id: 462731468
title: "Eisco Labs 1\" Drilled Brass Ball - Pendulum Demonstrations"
brand: "eisco"
price: "NZ$59"
currency: NZD
in_stock: true
reviews_count: 5
category: "Eisco"
url: https://www.desertcart.nz/products/462731468-eisco-labs-1-drilled-brass-ball-pendulum-demonstrations
store_origin: NZ
region: New Zealand
---

# Precision 1" diameter 2.5mm drilled hole for pendulum use Durable solid brass, 45.4g weight Eisco Labs 1" Drilled Brass Ball - Pendulum Demonstrations

**Brand:** eisco
**Price:** NZ$59
**Availability:** ✅ In Stock

## Summary

> ⚙️ Master physics with precision — the brass ball that swings your experiments into the future!

## Quick Answers

- **What is this?** Eisco Labs 1" Drilled Brass Ball - Pendulum Demonstrations by eisco
- **How much does it cost?** NZ$59 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/462731468-eisco-labs-1-drilled-brass-ball-pendulum-demonstrations)

## Best For

- eisco enthusiasts

## Why This Product

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

## Key Features

- • **Compact & Portable:** Lightweight 45.4g ball fits easily in your lab kit or backpack for on-the-go learning.
- • **Premium Brass Build:** Solid brass construction ensures durability and authentic weight for realistic demonstrations.
- • **Versatile Application:** Ideal for physics labs, hobbyists, and educational demonstrations—stand out in your experiments.
- • **Optimized Drilled Hole:** 2.5mm hole drilled to perfection, enabling seamless pendulum string attachment.
- • **Engineered for Precision:** Exactly 1 inch in diameter for consistent pendulum and collision experiments.

## Overview

The Eisco Labs 1" Drilled Brass Ball is a precision-engineered solid brass sphere with a 2.5mm drilled hole, designed specifically for pendulum and collision demonstrations. Weighing 45.4 grams, it offers durability and exact dimensions to elevate educational and hobbyist physics experiments.

## Description

1" Drilled brass ball - can be used for collison and pendulum demostrations. brass ball can be used for hobbies and various other things. Approx 2.5mm drilled hole

Review: Missing info - Please next time state its drilled right through as its useless for me. 24 euros down the drain. Thanks.
Review: Looks good as a sword pommel. - This ball worked out great as a sword pommel. I drilled out the center in small steps to 3/16", and then peened it into place on my home made sword. It looks great, stood up to the peening pretty well, and polished up fine on my buffing wheel. I would buy again if I make another sword.

## Features

- 1" Brass Ball
- Drilled for lab demostrations
- Approx 2.5mm drilled hole

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | EISCO |
| Part number | BLDBL25 |
| Item Weight | 45.4 g |
| Product Dimensions | 2.54 x 2.54 x 2.54 cm; 45.36 g |
| Manufacturer reference | BLDBL25 |
| Item Package Quantity | 1 |
| Batteries Included? | No |
| Batteries Required? | No |

## Images

![Eisco Labs 1" Drilled Brass Ball - Pendulum Demonstrations - Image 1](https://m.media-amazon.com/images/I/51c8Ub03LSL.jpg)

## Questions & Answers

**Q: Is the ball drilled all the way through like a bead?**
A: yes, it is drilled all the way through. Not sure of the diameter of the hole. The ball is not accurately round, but not oblong either.

## Customer Reviews

### ⭐ Missing info
*by T***. on 26 March 2019*

Please next time state its drilled right through as its useless for me. 24 euros down the drain. Thanks.

### ⭐⭐⭐⭐⭐ Looks good as a sword pommel.
*by T***S on 5 December 2018*

This ball worked out great as a sword pommel. I drilled out the center in small steps to 3/16", and then peened it into place on my home made sword. It looks great, stood up to the peening pretty well, and polished up fine on my buffing wheel. I would buy again if I make another sword.

### ⭐⭐⭐⭐⭐ it's a solid brass ball
*by S***P on 7 February 2023*

Used it as an outdoor door pull, nice finish and did the job.

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*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-10-16*