10pcs Mini Round Black 3 Pin Spdt On-off Rocker Switch Snap-in 100% Brand new and High Quality. Rating:6A 250V;10A 125V Mounting hole diameter:20-22mm Poles: SPDT (Single Pole Double Throw) Terminal:3-Pin(NC-COM-NO) Contact Resistance:35m max. Insulation Resistance:100M at 500VDC Dielectric Strength:1500VAC for 1 minute Operating Temperature:-25- +85 Electrical Life:10000 Cycles Size (H*W):2.7x2.2cm/1.06"x0.86"(approx)