1)Silicone keyboard,made100% silicone 2)High waterproof 3)Good durable 4)Suitable price... 5)Weight:310G materialuse100% silicone made, ECO-friendly,insipidity,avirulentcetificatePASS ,SGS ,FDA Meet EU -standars.usagewindely use all of kinds desktop computer.featurewater-resistant,long-lasting,actuation force flexibility,and improve type speed.it also can release negativeions.key life:10,000,000 ...