---
product_id: 35973195
title: "The Mailbox Books KOP12622 Koplow Games Dice, 20-Sided Double Dice"
brand: "koplow games"
price: "A$23"
currency: AUD
in_stock: true
reviews_count: 8
url: https://www.desertcart.com.au/products/35973195-the-mailbox-books-kop12622-koplow-games-dice-20-sided-double
store_origin: AU
region: Australia
---

# 20-sided double dice innovation Generates numbers up to 400 Enhances math & strategic skills The Mailbox Books KOP12622 Koplow Games Dice, 20-Sided Double Dice

**Brand:** koplow games
**Price:** A$23
**Availability:** ✅ In Stock

## Summary

> 🎲 Roll smarter, play harder — double dice, double the edge!

## Quick Answers

- **What is this?** The Mailbox Books KOP12622 Koplow Games Dice, 20-Sided Double Dice by koplow games
- **How much does it cost?** A$23 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/35973195-the-mailbox-books-kop12622-koplow-games-dice-20-sided-double)

## Best For

- koplow games enthusiasts

## Why This Product

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

## Key Features

- • **Master Math & Strategy:** Perfect for ages 3+ to practice multiplication and basic math while leveling up your game nights.
- • **Compact & Portable Power:** Lightweight 0.06 lbs and perfectly sized for on-the-go gaming or quick math drills anywhere.
- • **Designed for the Tactical Gamer:** Ideal for D&D and other d20 system enthusiasts seeking that edge with advantage/disadvantage rolls.
- • **Double the Dice, Double the Fun:** Unique 24mm transparent d20 with a mini d20 inside for dynamic gameplay and advantage rolls.
- • **Set of Six for Endless Possibilities:** Six dice per set to fuel your RPG sessions or classroom activities with variety and excitement.

## Overview

The Mailbox Books KOP12622 Koplow Games 20-Sided Double Dice set includes six transparent 24mm d20 dice, each featuring a mini 20-sided die inside. Designed for ages 3 and up, these dice generate numbers up to 400, making them perfect for practicing multiplication and enhancing tabletop RPG gameplay with advantage and disadvantage rolls.

## Description

Koplow Games Double Dice 20-Sided Set of 6 Assorted D20 6ct (KG12622)

Review: The advantage dice you need - A great product and a great item for any table. The double d20 dice. While not always easy to read. It gives better fun rolls on advantage and disadvantage rolls. So it's very recommended for any ttrpg enthusiasts that use a d20 system like D&D
Review: Roll With Advantage! - Great option for rolling with advantage or disadvantage. Can also be a novelty item for the gamer in your life!

## Features

- Sold as 6 pieces/Set.
- Age group and grade: Ages 3+ and grades 3+. Generates numbers up to 400 and can be used to practice basic math skills, and enhance all games and activities.
- Subject: Multiplication. Small parts, not for children under 3 years.
- Usage ideas: Helps to understand basic math functions. 6/set.
- 24 mm transparent 20 sided die with a mini 20 sided die inside (a die within a die).

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B001B02BR8 |
| Age Range Description | 36 months to 1200 months |
| Best Sellers Rank | #208,431 in Toys & Games ( See Top 100 in Toys & Games ) #666 in Role Playing Dice |
| Brand Name | Koplow Games |
| Color | Tan |
| Customer Reviews | 4.4 out of 5 stars 148 Reviews |
| Global Trade Identification Number | 00018183126226 |
| Included Components | Twenty Sided Double Dice(6) |
| Item Dimensions | 5.12 x 3.86 x 1.02 inches |
| Item Dimensions L x W | 5.12"L x 3.86"W |
| Item Shape | Icosahedron |
| Item Type Name | Dice Game Set |
| Item Weight | 0.06 Pounds |
| Manufacturer | SPIG **Do NOT activate** |
| Manufacturer Maximum Age (MONTHS) | 1200.0 |
| Manufacturer Minimum Age (MONTHS) | 36.0 |
| Manufacturer Warranty Description | No Warranty |
| Number of Pieces | 18 |
| Size | 24 mm |
| Theme | Number |
| UPC | 018183126226 |
| Unit Count | 1.0 Count |

## Images

![The Mailbox Books KOP12622 Koplow Games Dice, 20-Sided Double Dice - Image 1](https://m.media-amazon.com/images/I/71SrxcQoPZL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ The advantage dice you need
*by E***M on June 3, 2025*

A great product and a great item for any table. The double d20 dice. While not always easy to read. It gives better fun rolls on advantage and disadvantage rolls. So it's very recommended for any ttrpg enthusiasts that use a d20 system like D&D

### ⭐⭐⭐⭐⭐ Roll With Advantage!
*by J***K on August 30, 2025*

Great option for rolling with advantage or disadvantage. Can also be a novelty item for the gamer in your life!

### ⭐⭐⭐⭐ Fun present
*by A***R on October 3, 2025*

I gave these out as a gift for our group. A but hard to read the inside die but fun to use.

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**Shop now:** [https://www.desertcart.com.au/products/35973195-the-mailbox-books-kop12622-koplow-games-dice-20-sided-double](https://www.desertcart.com.au/products/35973195-the-mailbox-books-kop12622-koplow-games-dice-20-sided-double)

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*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-02-21*