B HYDRANGEA 15819 3 Piece Infuser, Small Bone china is light and strong makes any hot Beverage taste better steep your very own brew with this infuser set stainless steel infuser and a bone china lid to keep your drink hot Bone china mug with metal infuser 10.8 oz capacity Mug is microwave & dishwasher safe; metal infuser wash in Warm water Mug is microwave & dishwasher safe; metal infuser wash in Warm water