If you're building or renovating an RV, teardrop trailer, horse trailer, or cargo trailer, this RANSOTO sliding window is exactly what you need. It measures 14 inches wide by 22 inches high and fits wall thicknesses between 1-7/8 to 2-1/6 inches - pretty standard for most trailers. The vertical sliding design is super practical, and it comes with a half vent removable screen so you can get some fresh air without bugs invading your space. The black frame and tinted glass give it a modern, clean look that upgrades your vehicle's appearance instantly. They even rounded the corners for safety and style. Installation is straightforward though you'll need to provide your own screws. The window feels solid and well-made, not that flimsy stuff you sometimes get with trailer parts. It's perfect for adding ventilation and natural light to your camper without compromising security or weather protection. RANSOTO backs it with a 6-month warranty too, so you know they stand behind their product. Whether you're a DIY camper builder or just replacing an old, leaky window, this sliding window does the job nicely without breaking the bank. Definitely makes your mobile space feel more like home when you can actually open a window and enjoy the breeze.