Trapezoid Acrylic bases are 89mm, and 40mm. Faces measure 47mm, and 35mm. , Each

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Here is the rephrased product description: Acrylic Trapezoidal Prism This clear acrylic prism has a trapezoidal shape, featuring one flat surface that is frosted to enhance visibility. The bases of the prism measure 89 mm and 40 mm, while the faces measure 47 mm and 35 mm.