




⚡ Keep your game rolling with precision and style!
Four Brothers 1/2" Replacement Chromium Steel Balls come in a pack of 10, crafted from durable, corrosion-resistant chromium steel with a polished finish. Designed for 0.5" diameter requirements, these balls perfectly replace lost marbles in popular games like SpaceRail, Brio, and Gravitrax, ensuring long-lasting performance and seamless gameplay.










| ASIN | B076Z2B9NV |
| Best Sellers Rank | #132,050 in Toys & Games ( See Top 100 in Toys & Games ) #149 in Marble Runs |
| Customer Reviews | 4.4 4.4 out of 5 stars (465) |
| Is Discontinued By Manufacturer | No |
| Item Weight | 2.89 ounces |
| Item model number | 1004 |
| Manufacturer | Four Brothers |
| Manufacturer recommended age | 9 years and up |
| Product Dimensions | 0.5 x 0.5 x 0.04 inches |
| Release date | August 1, 2017 |
A**I
quite sturdy and uniform in size and shape
no dislikes
A**R
Fit a unique size Pinball machine
Fit pinball machine that did not use stand ball size.
D**Y
Marbles
They are steel balls... Not much to say other than they work well with spacerail.
B**D
They are OK
These balls rust pretty easy. Description says they are "high quality chrome steel" and I would disagree with that statement but other than that, they are decent.
A**R
Got what I purchased…
Bought it for a science project. The project was a success.
K**A
Only good for a few days
The shine rubs off
A**N
JUST ONE THEM TOYS....
JUST HAPPENS ONE THEM TOYS THAT WOULD BE MISSING SOME OF THESE. A MUCH NEEDED REPLACEMENTS. THANKS!!!
M**R
Works for Mousetrap!
We have a fairly new version of Mouse Trap and these worked to replace the one we were missing. They are not exactly the same size as the original one, but they are heavy enough to trigger the next event.
G**.
Quality seems good and item was as described
J**Z
El peso exacto para Spacerail
Trustpilot
1 month ago
1 day ago