This Vibrant 4 Ply Reinforced Silicone Elbow Connector is a flexible and durable connector with a 4-inch inner diameter and 45-degree angle. It is made with 4 layers of reinforced silicone to provide superior strength and flexibility and is designed to withstand extreme temperatures. The black finish gives it a sleek, modern look and makes it an ideal choice for automotive applications. It is also resistant to corrosion, oil, and other chemicals, making it an excellent choice for a variety of industrial uses.