5Pcs Original TTC Gold Silver Micro Switch Mouse Button Accessories 30 Millions TTC gold micro switch: Relatively moderate strength, relatively crisp, short stroke, rebound compact, rapid, and the rebound strength is very uniform, conservative life is 30 million lifetimes TTC gold micro switch has been tested by American UL and European Union / ENEC international laboratory, not only through 30 million mechanical life, but also through 30 million electrical life,The real 30 million power life, stable and reliable,A large number of mouse brands have been selected since the mass production in early TTC silver micro switch: The relative strength of the gold is slightly harder, lighter, less brittle, shorter stroke, compact rebound, rapid, and the elasticity is relatively uniform, conservative life is 20 million lifetimes TTC silver micro switch: using 999 Silver contact, quick response operation, the use of American elastic memory metal material, with a long shelf life and so on.Through the 20 million mechanical life, but also through the 20 million electrical life.The real 20 million power life, stable and reliable, the relative cost performance is very good Specifications: Color:Yellow(Gold), White(Silve) TTC silver micro switch (20 million lifetimes), TTC gold micro switch(30 million lifetimes), Size:12.8x5.8x6.6mm Quantity:5Pcs Package includes: (Without retail package) 5 x Original TTC Micro Switch Mouse Button