Fit for duct opening size: 4" x 10". Overall size: 5-1/2" x 11-3/8". Please kindly read size information in listing picture before you make decision to buy this floor register. As wood products come from nature, our floor register products are unfinished, there will be slight difference on color and wood grain. It is very hard to guarantee that the color and grain of the products you receive are consistent with the picture. Drop in vent with self-rimming edge can drop in duct opening easily. It sits on top of floor surface, the height of on-top part is 0.4 inch. Solid white oak floor vent cover with louvered design, the color on picture is for reference, and color may vary as wood itself. The surface of the product is unfinished or not painted, please paint the product by yourself to match with your floor color. This kind of wood vent cover is not recommended to be installed in high traffic area., Weight: 0.6 pounds, Manufacturer: Suzhou Homewell Wood Co., Ltd