Colorful and versatile heat shrink tubes in a wide spectrum, including black, red, yellow and other bright shades. The varied colors support cable organization, labeling, and quick identification, giving a clear overview in complex systems. Ideal for electronics projects, repairs and DIY tasks, the color range helps you cover different needs at a glance. Durable materials for reliable insulation. Made with robust materials, this product offers dependable heat resistance and excellent insulation, making it a trusted choice for electrical applications that require long-lasting, safe protection. Compact, organized storage. The transparent storage box provides a neat, compact solution that streamlines cutting and installing heat shrink tubes while keeping pieces organized and easy to access. Multi-purpose insulation solution. Suitable for protecting PCBs, securing cable connections, supporting connectors, and handling a variety of tasks with dependable performance in electronics, crafts or home improvement. Use scenarios - Electronics projects and repairs: color-coded wiring for easy wiring, troubleshooting and cleaner cable management. - DIY and home improvements: insulating and protecting exposed wires in appliances, gadgets and hobby projects. - PCB protection and connector work: safeguarding boards and connections during assembly, testing and maintenance.