A Large Number of: there are 1000 heat shrink butt connectors in the package, sufficient quantity can meet your daily use and replacement; Their intermediate conductors are high purity copper tubes with good electrical conductivity, which can help you work better and make your connection projects and more reliable Quality Shrink Sleeve: wire butt connectors heat shrink is produced by compounding polyolefin and hot melt adhesive, which is applied to protect the connection, strengthen the fixation and anti vibration in the rough environment; They are waterproof, and have good insulation protection for a longer service life Product Features: wire butt connectors have a shrinkage ratio of 3: 1, have excellent electrical conductivity, elasticity, tensile strength, mechanical damage and puncture resistance, are not easy to deform or break, sturdy to use Applicable to: waterproof wire connectors can be widely applied in automobile, marine, electrical, electronic and other industries, which operating temperature is -55℃~125℃, the shrinkage temperature is 80℃, and the minimum complete shrinkage temperature is 130℃, making wiring work a breeze Ease of Use: terminal connectors with wire gauge marks are easy to identify; You only need to measure the wiring and look at the wire gauge markings on the polyolefin tubing to easily select the proper connector Color: Rose Red Material: plastic Package Contents: 1000 Pcs Heat Shrink Butt Connectors Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.