These Micro features Single Pole Double Throw (SPDT) type, 1NO + 1NC Contact, momentary action, hinge roller lever actuator. Easy installation and long using life. Widely used in electronic equipments, Microwave Micro door, oven and refrigerator interlock N/O etc. Features - Brand: WINOMO. - - Net Weight : 22g. - : 125- . - Overall Size (Pole not included) : 20 x 6 x 10mm / 0.8" x 0.2" x 0.4" ( W x H). - Hinge Roller Lever Length : 18mm/0.7". - Roller Diameter : 4.5mm/0.2"Mounting Hole Dia. : 2mm / 0.08". - Mounting Hole Spacing : 9mm/ 0.35"; - Material : Plastic and metal - Made of plastic and metal, the SPDT is durable and non-toxic. - Snap action contacts have different trip and reset points. The distance between the trip and reset point is called the travel to reset, , or differential. Finite travel to reset helps to avoid multiple changes of state if the object actuating the is subject to vibration. - Snap action contacts ensure repeatable performance in applications that involve low actuators. The amount of travel of the contacts is also not dependent on the amount of travel by the actuator. - You can get 10pcs in one package, which is enough for your daily use. - Easy to use for your various occasions. Package list: 30 x WINOMO Roller Lever Arm SPDT Snap Action LOT