70PCS Wire Nuts Insulating Insert Twist Electrical Wire Connectors with Spring Threaded Line Cap Wire Caps for Quick Connection Colorful Wire Caps Electrical

1.Product material: insulating material PVC 2. Contact material: steel spring 3. Product color: blue/orange/yellow/red 4. Pack of 70: P2-20pcs, P3-20pcs, P4-20pcs, P6-10pcs 5. Scope of application: mechanical equipment, automotive electronics, household electrical, household circuits, 6. Product function: increase the wire crimping range to make it easier to conduct electricity, And it can clamp the wire better, even if it vibrates strongly, it will not fall off 7. Product features: fire retardant/flame retardant 8.Maximum temperature: 105C (Hua chamber temperature: 221F)