What size is the cylindrical hole in the center of the cube?

1/2". The device comes with a magnet to to fit into the hole. A 1/2" by 3" cow magnet work fine as well.

What is the maximum size magnet that will fit in the tube?

Ours came with a three (3") inch cow magnet. I bought extras in case one gets lost as they do. The device works great with students demonstrating magnetic fields in 3D. Hope this is useful. Richard

What is the ID of the tube?

A three inch long 1/2" dia cow magnet fits perfectly. It also comes with its own cow magnet. 0.5'is the ID of this device.

American Scientific Magnetic Field Cube | Desertcart Solomon Islands

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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SI$1819

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Sold byAmazon Solomon IslandsDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🧲 Unlock the invisible forces shaping your world—magnetically mesmerizing!

MULTI MAGNET INTERACTION - Experiment with multiple magnets simultaneously
360 FIELD VISUALIZATION - Observe magnetic patterns from every angle
COMPACT PORTABLE DESIGN - Small 3" cube fits perfectly on any desk or shelf
CLASSROOM READY TRANSPARENCY - Clear acrylic for seamless group demonstrations
MESS FREE MAGNETIC EXPLORATION - No stray filings—pure focus on discovery

The American Scientific Magnetic Field Cube is a 3-inch clear acrylic cube filled with iron filings suspended in solution, enabling mess-free, 360-degree visualization of magnetic fields. Designed for hands-on learning, it supports multiple magnets and is ideal for classroom demonstrations with overhead projection compatibility. Compact and portable, it offers a clean, interactive way to explore magnetism without the hassle of loose filings.

Specifications

ASIN	B076P3MR67
Age Range Description	Kid
Best Sellers Rank	#274,646 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #73 in Science Education Magnets & Magnetism Kits
Brand Name	American Scientific
Color	Clear With Black Iron Filings
Customer Reviews	3.9 3.9 out of 5 stars (20)
Educational Objective	Learning
Indoor Outdoor Usage	Indoor
Is Assembly Required	No
Item Dimensions	4.5 x 4 x 4.5 inches
Manufacturer	American-Scientific
Manufacturer Maximum Age (MONTHS)	144
Material Type	Acrylic
Number of Players	1
Operation Mode	Manual
Power Source	Hand-powered
Size	Small
Supported Battery Types	No batteries required
Theme	Magnetic Field Study
UPC	730052000733
Unit Count	1.0 Count

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