White is excellent because of the textured embossed lines that help open and close the lid. Black ones don't have these 3D embossed lines like white ones and while their shape is better (rectangular) they are thinner and difficult to attach or close but overall if you're careful they just don't work. expect better from black. White round ones are more durable. I think they are overpriced, a friend found similar and slightly better quality at a store for $2/$10. and here you pay almost $10 for six
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