The Nuvium 4″ Rise Modular Threshold Ramp for Doorways is a stable wheelchair ramp made of aluminum, designed for easy access to doorways. With a size of 4″, this silver-colored ramp is durable and sturdy, providing a smooth and safe transition for individuals with mobility issues. Its modular design allows for easy installation and customization to fit specific doorway sizes. The ramp’s dimensions of 76″ in height, 318″ in length, and 1100 lbs in weight capacity make it suitable for a variety of accessibility needs.