The float is metal, and the sealer is flexible, which is odorless, and safe to use Float for and silicone gasket are part of the cover and are essential parts for the work of the Silicone gaskets are often washed off, making the float for loose and the unusable This spare part can make your malfunctioning cookware work This float and sealer can be applied to various types of electric pressure cookers , first insert the smaller side into the cover ( from outside to inside), then put the sealant on the smaller side so that it is in the of the for