... usual silicone keypads5. Resists Moisture & High Temperatures 6. All shapes and colors available for buyers design 7. Logo printing is available ... ,R440,R423,R430,X320,X418,X420,RV4083.IBM:a.Thinkpad E30,E40,E50,E13,E420 b.Thinkpad SL300,SL400,SL410,SL410K,SL500,SL510 ... piece 2.Harmless to body,smooth hand feeling3.More durable and long-lasting than usual silicone keypads4.Resists Moisture & High ...