Upgrade your heat shrink tubing with Qualtek Electronics Part Q5-4X-5/8-01-QB48IN-5. This high-quality tubing features a 2 wall design with adhesive, made from durable polyolefin material. With a 4:1 shrink ratio, this tubing provides a secure fit for a variety of applications. In a sleek black color, this tubing has an inner diameter of 5/8" and a length of 48", perfect for a range of projects. Each package includes 5 pieces, ensuring you have plenty of tubing for your needs. Trust Qualtek Electronics for reliable and effective heat shrink solutions.