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
TO REPLACE THE SHOVEL
From the depths of centuries, the shovel has reached us, to which V. Dal, the creator of the Explanatory Dictionary of the Living Great Russian Language, gave an amazingly apt definition:...
HIGH-SPEED ASYMMETRIC
The proposed control line speed model (C. F2А) asymmetric scheme designed and built in the aeromodelling club "Falcon", under the leadership of its founder and coach B. I. Shibanova,...
