Silicon book cover 1.Material:Silicon rubber 2.Lego design with good hand feeling 3.Sample is available Silicon lego book cover for promotion/Christmas gift 1.Made of 100% food grade silicone , non-toxic,odorless2.Flexible ,collapsible,easy to store,space safe3.All colours are available4.Non-stick ,unbreakable5.OEM order is welcome Silicon book cover