This simple device facilitates the use of any tube, helping to squeeze it evenly and gently. It consists of a base in a hole which is inserted the tube, and turning a key with slit for exciting a planar end of the tube. The base and key are made of wooden bars of appropriate dimensions. Their interaction is clear from the figure.
Recommend to read
MIMICKING NATURE
Beauty flowers accentuate the original holder. It stands and platforms made in a "vegetative" style and successfully resonate with large leaves and branches of trees. And together...
WARDROBE — HARVESTER
Modern small apartments have to "measure seven times" before it to arrange the furniture. In the nursery the more. One solution is to use furniture combines, for example, such as in the...