... Because you have only lost once this little thing, you should not use the tape. Without this cap it is generally not working very fast. And when one has sipped Rumkramen this cap very easily once. My recommendation, also order the band the two spare caps best equal. Because you used the band not a few days, then you will angemeckert daily from the app on his smartphone that you subsided "had '. Also not agree after a break of a few days the statistics.