The TE Connectivity / Raychem Brand part 202K121-4/42-0 is a heat shrink flexible molded boot made from high-quality ST polyolefin material. This boot is designed to provide excellent protection and insulation for cables and connectors in various applications. It features a durable construction that can withstand extreme temperatures, abrasion, and chemicals, ensuring reliable performance in harsh environments. The flexible nature of the boot allows for easy installation and a secure fit. With its superior heat shrink properties, this molded boot provides a tight and seamless covering for your cable connections, reducing the risk of damage and ensuring long-lasting reliability.