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
BROOM-“PULVERIZATOR”
For uniform spraying paint when decorating large or small surfaces, to create artificial "rain" indoor plants or spraying vegetable crops and shrubs with chemicals that help to combat...
THE SUN IN HARNESS
The intricate design shown in the picture, — not that other, as the solar engine, the engine that converts the thermal energy of sunlight directly into mechanical work. It is arranged...