Materials: PETG case with TPU gaskets and acrylic container. Ultracal 30 gypsum-cement insert and PETG mesh spacer. Dimensions: 4 x 4 x 3.086" (101.6 x 101.6 x 78.4 mm) case outer dimensions. 2.701 x 2.701 x 2.433" (68.6 x 68.6 x 61.8 mm) farm inner dimensions. 3/8" diameter entrances. Included Accessories: 1x PETG container cover. 2x TPU KeySna