300pcs Heat Shrink Tubing With Glue Ratio 3:1 Heat Shrink Tubing 7 Sizes, 2 Color (black, White) Jiujiuso The product is shipped based on the color or size of the main image of the product page. Higher quality and stronger shrink ratio: made of high quality polyolefin, 3: 1 Stronger shrink ratio makes it more suitable for electrical insulation or bonded to open wire insulation or either. Comprehensive Utility: Heat Shrink Tubing Kit is great for any workshop project, fixing the breakage of cables, electrical insulation, connection wire, etc. You can also use it for allthe iPhone and iPad charging cable and headphone. Applied length and inner diameter: Heat shrink tube designed with same length 45mm inner diameter and multiple and 7 size: 2.4mm, 3.2mm, 4.8mm, 6.4mm, 7.9mm (35pcs), 9.5mm, 12.5mm. Safe and easy to use: sheath heat shrink has the advantages of good electrical insulation, good sealing and corrosion resistance, high temperature resistance. Cover the bare wire part with these tubes, heat it with soldering iron, heat gun or even hair dryer (hot enough), the shrink tube will protect the wires and give you a professional looking repair job. What you get: 7size, 2 colors retraction 3: 1 ratio heat shrink tubing, total 300 pcs. Shipping Qty: 300 pieces Size as shown