The Tube 250/275 12 Tr 4 Valve Stem is a durable and reliable inner tube designed for 12-inch tires. Its key features include a 4 valve stem for easy inflation and compatibility with a variety of tire sizes. The benefits of this tube include improved air retention and puncture resistance, ensuring a smooth and safe ride. Its unique selling points are its high-quality construction and versatile design, making it a must-have for any cyclist or bike enthusiast.