The TE Connectivity / Raychem MTCR-303-04S is a versatile and reliable heat shrink tubing product that is designed for ease of use and durability. With a shrink ratio of 3:1 and a 4mm pre-shrink inner diameter, this tubing is ideal for a wide range of electrical and mechanical applications. Made from high-quality materials, the MTCR-303-04S provides excellent protection against moisture, chemicals, and abrasion. Trusted by professionals worldwide, this heat shrink tubing is a top choice for a variety of industries.