Solder Ring Heat Shrink Tube, Protective Tube Shielded Wire, Waterproof Terminal Block 1.Solder Seal Connectors Will Make Your Wire Connection Waterproof Just In Seconds; 2.Also It Applies Some Mechanical Damage Protection And Prevents Wire Corrosion! 3.Our Connectors Are An Irreplaceable Tool For Fast, Reliable And Effective Wire Connection In Any Place And Are Appreciated By Handymen All Over The World! Product Description： Connector Working Temp.: -67F257F Min. Shrinking Temp.: 175F Max.Shrinking Temp.:>320F Min.Solder Sleeve Melting Temp.: 280F Max. Solder Sleeve Melting Temp.: 320F Dielectric Strength: 1kv Waterproof Level: Ip67 Product Specifications： White(Awg26-24)0.25-0.34mm²-- 30 Pcs Red(22-16 Awg)0.5-1mm²-- 40 Pcs Blue(16-14 Awg) 1.5-2.5mm²-- 40 Pcs Yellow(12-10 Awg)4.0-6.0mm²-- 10 Pcs Tutorial： Step1:Strip Wire Insulation Insert Into Electrical Wire Terminals Crimp Connectors Splice Barrel. Step 2: Let The Stripped End Of The Wire Be Located In The Center Of The Solder Ring, And The Two Wires To Be Connected Overlap. Step3:Apply Heat With A Heat Gun Or A Mini Blow Torch While Rotating A Terminal. Heat Shrink Wire Connector Tubing Will Reduce In Size And Adhere To The Wire. No Need Soldering Set,Safe And Quick. Package Includes:1 Box Heat Shrink Solder Ring Kit Notice: 1.Due To Manual Measurement, Please Allow An Error Of 1-2cm. 2.Due To The Different Display And Different Light, The Picture May Not Show The Actual Color Of The Item. Thanks For Your Understanding. 3.We Are Very Happy You To Come To Our Store, If You Have Any Product Problems, Contact Us, Will Solve It For You Within 36 Hours, Please Believe In Our Service Attitude, Wish You A Happy Life.