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
“PRIEST” AND “SEXTON” SELF — PROPELLED HOWITZER OF THE ALLIES
From the beginning of the Second world war in the United States of America closely followed the fighting in Europe and I must say, doing generally the right conclusions from the...
BIOGAS ON THE FARM
«Dear editorial board! While reviewing back issues of 'Modelist-Konstruktor' from previous years, I became interested in materials about biogas published in issues No. 1'87, 5'88, 4'96 of...