Specification Brand : CHANZON BulletPoint1 : 4-1 Ratio - shrink to 1/4 of its original diameter, double wall lined with glue inside for a marine grade waterproof seal, with anti stick tape no tacky interior, diameter 1-1/4 (1.18 inch) (32 mm), 4 feet long, please see diameter chart(picture 3). BulletPoint2 : Safe & ECO-Friendly - UL Listed for up to 600 voltage -55-125℃ working tempurature which ensures its safe and reliable, RECH/ROHS compliance halogen and lead free protect you and your family. BulletPoint3 : DOUBLE WALL TUBING - Take out the anti-adhesive paper inside then apply heat, adhesive comes out and seals the connection, creating marine grade waterproof insulation, corrosion resistance water & oil proof, VW-1 Flame Retardants, High temperature resistance 3/1 shrinkable glue inside wire. BulletPoint4 : EASY TO USE - Choose the right size you need and simply slide shrinking tubes over your connection point and apply heat around 70-125℃ temperature evenly with a hot air gun. BulletPoint5 : APPLICATIONS - Shrink tube are mainly used for industrial repair, ship, automotive, wire links, anti-rust and anti-corrosion protection of solder joints, and audio and electrical DIY. Wire ends, harnesses, electronics protection and insulation treatment, fitness equipment parts and steel structure surface protection and so on. Color : Black ExternallyAssignedProductIdentifier1 : 0653829560455 ExternallyAssignedProductIdentifier2 : 653829560455 ItemName : Chanzon 4:1 Ratio 1-1/4" (32mm) Heat Shrink Tubing - Marine Grade Waterproof Adhesive Lined - 4Ft Roll (1.22M Total Length) Black Polyolefin Sleeving Wrap Shrinking 4 to 1 Ratio 1pcs ItemPackageDimensions_Height : 31.75 centimeters ItemPackageDimensions_Length : 1.016 centimeters ItemPackageDimensions_Width : 7.366 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : heat-shrink-tubing Manufacturer : CHANZON Material : Polypropylene ModelNumber : RSG-4/1-DJ-32G-HEI-1.22M-1 NumberOfItems : 1 PartNumber : RSG-4/1-DJ-32G-HEI-1.22M-1 ProductDescription : Wire Heat Shrink Tubing Ratio: 2:1 (Shrinks to 1/2 of its original diameter)