KisKis - Set of 4 - Silicone Design Tea Fruit Infuser Strainer Teapot TeacupBPA-free. (strawberry,pear, rose, green pear) Food grade harmless silica gel material,it's innocuous to humans. A great tool for mixing different flavor together when you are making tea. This tea infuser can be used for loose leaf tea in teapot, teacup.etc. Material:Silicone A great tool for kitchen.