Carbon air filter w/ wood stands

Modern hex-grid carbon cube air filter, with 3 custom handmade wood holder in different stain colors. Originally purchased the cube from a Gastown boutique. My dad made each of the custom wood holders by hand. Cube measures 1⅝” x 1⅝” x 1½”. Stands measure approx 2.5“ x 1.5” x 1.75”. Small chip out of one corner of the carbon cube, otherwise in excellent condition. From a pet-free smoke-free home.