Link stick&hot stick, it is also be knowed insulation operating rod, It is used when closing or pulling open the high voltage disconnecting switch, installing and removing the portable grounding wire, and conducting measurement and testing. The material is fibreglass , epoxey resin.     they have the following advantage: convenient operation, flexible structure, good insulation performance, light weight, high mechanical strength, wide range of application, carrying light, strong moisture-proof advantages. It has successfully passed the form experiment of the Electric Power Safety Instrument Quality Supervision and Testing Center of the Ministry of Electric Power