Tactile Push Button Switch Momentary Tact 5.2X5.2mm 4Types Details: Type TS-4401:5.2x5.2x1.5mm Copper head,260gf default,used widely for toys,keys,boards etc. Type TS-4402:5.2x5.2x1.5mm Rubber head,260gf default but soft feel when push,used widely for toys,keys,boards etc. Type TS-4403:5.2x5.2x0.9mm Used widely for toys,keys,boards etc. Type TS-4404:5.2x5.2x1.5mm U Type Copper head,260gf default,used widely for toys,keys,boards etc.