Car Seat Heater Single Dial 5-Gear Switch One kit contains: 2 switch + 2 wiring harness + 4 heater element. Two seats installed The single dial 5-position switch Fit cars All type cars Switch Universal Material Carbon fibre pads Export More than 1,1050sets per year Supplied to China ChangChun FAW,Volkswagen,etc Certification ISO:9001:2015, GB/TS 16949:2009etc Strict test passed Passed 13 items strict test in US,such as knee load test,180-degree bending durability test, powered endurance test, ingress egress test etc. Failure rate <3‰ in 3 years Warranty 2 years/24,000 km