This Vibrant 4 Ply Reinforced Silicone Hump Hose Connector is a 4in I.D. x 3in long connector made of black silicone. It is designed to provide additional strength and flexibility for your hose connection. The 4-ply reinforced construction provides superior strength and durability, and is designed to withstand extreme temperatures and pressure. The connector is ideal for use in a variety of applications, including automotive, marine, and industrial. It is designed to provide a secure, leak-proof connection that won't fail under pressure.