Do not you find that a bunch of keys in your pocket slizhkom became cumbersome? Solder them in pairs, and it will be much more compact and easier to use. The keys are connected to a pair of depending on the length and destination. Possible combinations can be the key to the apartment and from the mailbox; the key of the garden gate, and to give the key to the garage and from the castle at the gate.
Recommend to read
FIBERGLASS A MODEL AIRPLANE
The industry has already mastered the production of some basic parts from thermoplastics. This is an interesting and promising method for production of large series, however, for...
BRUSH FOR FIVE MINUTES
You urgently needed a thin brush and matching hand was not — immediately make themselves needed. Take the vacant core of a ballpoint pen, pass through a long loop of thin perevoloki or...