8PCS 100cm 4:1 Waterproof High Flame Retardant Heat Shrink Tubing Dual Wall Adhesive Lined Heat Shrink Tube, Insulation Seal Against Moisture, Air Leakage-Diameter:20mm/Flattening Width:32.8mm

Specification:Material: RubberColor: blackSize:Diameter*Flattening width:20*32.8mm/0.79*1.29inchesLength: 100cm/39.37inchesShrink Ratio: 4:1Shrink temperature：90°Temperature range: -55°-125°Package included:8PCS heat shrink tube

• [Safe & Eco-friendly] This heat shrink tube is with standard of RoHS, UL and CSA certification, which ensures that it is free of formaldehyde (HCHO), heavy metals and other harmful substances. You don't need to worry about it hurting your body and environment.
• [Good Protectoction] Made of premium material, this heat shrink tubing has the advantages of good electrical insulation, good tightness, high temperature resistance and waterproof.
• [Shrink Ratio] With 4:1 heat shrink ratio, it will shrink up to 1/4 of original quickly, which can offer you a tidy condition. After heat shrinking, it can be twisted at will, and is wearable and will not rebound.
• [Superb Craftsmanship] The wall of the tube is attached with hot melt glue, which is spread evenly making the shrinkage more closely.
• [Easy to use] For some devices that need to be cut and put into the heat shrink tubing, this heat shrink tube can help you to solve these troubles. The high shrink ratio means that connectors don't usually need to be removed from cables as this heat shrink can be slided over the top. Having heated the shrink tubing sufficiently the sleeve will reduce in size, which provides lasting, more durable sealing than insulation tape, and it will not lose grip over time.