These egg flats are 12" X 12" and make great surface area for crickets, mealworms and zophobas worms.
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The egg flats received, were stained, brown and crumbling. The eggs crates in the boxes of crickets were actually in much better shape.
The manufacturer has told us that the brown hue comes from the recycled material used when making the egg crates. This should not affect their use.