Gikfun V-156-1C25 Micro Limit Switch Long Hinge Roller Momentary SPDT Snap for Arduino (Pack of 5pcs) AE1056 5pcs V-156-1C25 Micro Limit Switch Long Hinge Roller Momentary SPDT Snap 2PCS Round Micro Speaker Diameter 28mm 8Ohm 8R 2W Height(Thickness):6mm