Tinned Copper Material: All sizes of crimp terminals are made of 100% tinned copper, these battery terminals have excellent electrical conductivity. The tinned copper terminals have a cold pressing process, so the rings are not easy to corrode and can be used for a long time.Precision Design: These electrical terminals have a precision design. flared opening, which are more convenient for wire insertion, and the closed wire loop connector can isolate the wetting and ensure a safe and reliable connection, so well suitable for outdoor and marine installations. p>60 Equipped Tubular Terminals: 20PCS 7mm red, 20PCS 7mm black, 15PCS 10mm red, 15PCS 10mm black, Length: 45mm. Retraction ratio: 2:1, tubular terminals are ideal for ensuring tight cable connections and protecting components from corrosion.Easy Use: These battery cable terminals are easy to crimp, firstly fix the terminal with crimper gently, then put the wire without insulating layer into the terminal, then press the crimping tool forcefully to connect them, finally you just need to choose the right size terminals to fit the cable.Wide Application Set: Package includes 70 pieces of tubular terminals (M6/M8) with 8 sizes(6mm/10mm/16mm/25mm ) and 70 pieces of tubular terminals in 2 sizes(7mm/10mm). The set can be widely used in automobiles, trucks, motorcycles, bicycles, solar energy systems, home appliances, railway transport, machinery and equipment factories etc.Specification:-Crimp TerminalsMaterial: tinned copperColor: silverQuantity: 70 piecesShrinkage ratio 2:1-Tubular TerminalsMaterial: WTTColor: black/redQuantity: 70 pieces Packing List:70 pieces of crimp terminals:10 x SC6mm- M6; 10 x SC6mm- M8;10 x SC10mm- M6; 10 x SC10mm- M8;10 x SC16mm- M6; 10 x SC16mm- M8;5 x SC25mm- M6; 5 x SC25mm- M870 pieces of tubular terminals:20 x Black (7mm*45mm); 20 x Red (7mm*45mm);15 x Black (10mm*45mm); 15x Red (10mm*45mm);1 x plastic box (20.4cm x 10.5cm x1.8cm)