Bike pedals used to put a metal screw cap to protect the bearings from contamination. Now, instead, use the plastic plugs, which are often lost. Rescue plastic or nylon tubes from medical bubbles. Such substitutes being kept quite steady.
Recommend to read
FLASHLIGHT FROM CLOTHESPINS
A makeshift flashlight can be made from clothespins, two drawing pins, disc batteries and a bright led. Disk battery should be installed between the findings of the led, observing...
THE GRIP OF DARKNESS
It's like a magic trick: the metal part is placed on small size book, like a table and instantly welded to it — has no force can not budge it. How it works magnetic plate is designed for...
