Replacement Chromium Steel Marbles for STEM Toys, Marble Run, Brain Games, GraviTrax, Gravity Maze, Marble Maze - Great for All Toys & Games requiring a 1/2-inch Ball. (Pack of 20)
Elevate your gaming experience with our versatile 1/2-inch ball bearing, specifically designed as an exceptional replacement part for both Gravitrax and Gravity Maze games. Crafted with precision from premium chromium steel, this ball bearing guarantees unmatched durability.
