These cutting plates are designed and formulated with a new double-sided design. Created from a thicker, clear plastic than a regular cutting plate, they will receive less damage, promising longevity.Details:Clear6" x 9" each2 cutting platesDouble-sidedPlasticNote: If your plate does start to bow, a totally normal side effect of the die-cutting process, flip it over and pass through your machine until it is flat again. Once it is, continue to flip and rotate as normal.