Perfect Fit: This RV door shade cover is compatible with for Shade Ready frame entry doors, measuring 12x21 inches, ensuring a perfect fit. Warm reminder: please measure your window size before purchase. Premium Material: Our RV thin pleated shade is made of double-layer cellular structure. The outer black layer ensures privacy and darkness, while the inner reflective layer effectively repels sunlight, UV rays, and blocks heat, providing effective heat insulation, reducing indoor temperature, and improving sunshade effect. Aluminum Rails: This slim window shade also features an aluminum rail structure, making it more and sturdy, and avoiding deformation due to heat or high temperatures like other fragile plastic rails. This design ensures the stability and durability of the sunshade, providing you with long-term use protection. Semi-Open Design: The sunshade cover adopts semi-open design, allowing for easy adjustment of the shading area to meet different lighting needs. At the same time, the sunshade provides comprehensive sun and vision blocking, protecting your privacy and providing a comfortable and private space to of your journey. Easy Installation: Our RV thin sunshade cover is compatible with prepped entry doors, making installation simple and requiring no complex tools or professional knowledge. Tips: 1. Before purchasing, please measure your RV window size to the window shade can be perfectly installed and sun protection. 2. If you install the shade upside down, you're up higher to see out, but people can't see in. Colour:Black Material:Metal Size:12x21 Inch Package Contents: 1 * RV door shade Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.