cup: new bone china;lid: silicone rubber;decoration: PVC. Suitable temperature: 0-100degrees.Not suitable for microwave ovens,dishwashers and ovens. Do not soak the cup in water for a long time.Do not scratch the surface with sharp objects such as nails,steel wire balls,etc.,to avoid damage to the surface. Do not drag or tear the decoration.Keep the decoration away from food.The product is fragile,please handle with caution. cup: new bone china;lid: silicone rubber;decoration: PVC.