The TE Connectivity Raychem D-110-0090 is a solder sleeve wire splice that is insulated for added protection. This splice makes it easy to connect wires securely and quickly without the need for additional insulation or sealing. Simply insert the wires, apply heat, and the solder melts to create a reliable electrical connection. Perfect for a range of applications, this solder sleeve splice is a durable and efficient solution for your wiring needs.