Blind flanges are frequently manufactured and stocked in many various materials. They are usually identified as [[https://www.laboutlets.com/product-category/glove-box/acrylic-glove-box/ [[https://www.laboutlets.com/product-category/glove-box/acrylic-glove-box/ [[https://www.laboutlets.com/product-category/glove-box/acrylic-glove-box/ Blank Flanges]]]]]].