1. Achieve reliable protections and sealing with this 90mm shrink tube set. Its shrink ratio ensures good performances for variety of items. 2. Crafted with a double wall design and adhesive interior, these black shrink tubes provide insulation and waterproof properties. Prevent leaks and ensure functionality in many situations. 3. Designed for DIY enthusiasts and professionals, this shrink tube set is suitable for electrical projects. Whether you're repairing electronics or working on custom wiring, this set is a useful option. 4. Organize your area easily with this shrink tube set. Suitable for wire insulation, protecting connections, and labeling wires, essential tool for achieving a neat setup. 5. Experience the benefits of heat shrink tubes with this set. Its sealing capabilities, durability, and flexibility make it a good choice for your shrink tube needs. Upgrade your cable management with this solution. 6. Specifications: Material: rubber; Tensile strength: equal & more than 10.4MPA; Φ1mm black 40mm 105 pieces, Φ2mm black 40mm 56 pieces, Φ3mm black 45mm 70 pieces, Φ4mm black 45mm 42 pieces, Φ5mm black 65mm 28 pieces. 7. Package Includes: 385pcs Heat Shrink Tubing. 8. Note: Please allow 1 to 3cm error due to manual measurement, please make sure you do not mind before you bid; Due to the difference between different monitors, the picture may not reflect the actual color of the item.