● Applicable for AC &DC
● Anti Corrosive &Anti Rust Metal
● Silver Tip Contact-ensure proper conductivity
● 100% Pure Copper Connecting Plate
● SS Spring ensures ultimate contact strength
● High-Quality PC &PA Plastic: Fire retardant
● Highly Resistant to Moisture, Heat &Fire
● Flames &Glowing at the specimen extinguish within the 30s
● Switching compatibility more than 40,000 cycles