Flashers 67 barracuda

All lights including the 4 way flashers are working right now. I dont no if trying all those old switches knocked rust off the terminals or using the switch a few times since it probably wasnt used in 10-15 years. Im still gonna get another flasher and if that doesnt fix things permanently I will be looking for a switch. Is the 4 way flasher switch something special or just a toggel switch. 67 barracuda