The principle is so simple and effective that it better not go. After the first use of the tube is "install" space around the Tubenquetscher to. Inserted laterally or from above, and then mounted the pivot rod to the tube fold. Here we go. Super empty and clean. Desired side effect! You can now put the tubes in the refrigerator.
Pearl supplies incl. Self-promotion and a small accessory. Still not a meaningless big package. So thoroughly satisfied.