Placing small pebbles around the trunks of potted plants, prevent gullies in the soil when watering. And paste over smooth colorful stones in the pot, turn it into a work of applied art.
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UNIVERSAL INDICATOR
Two LEDs with different color (e.g., red and green), you can build a simple indicator for voltages from 4.5 to 220 V. It is also able to determine the polarity of the source in the range...
BELT KEY
With it easy to turn tightly wound cover and the clutch. In this tool, as the tape uses a rubber strip with a thickness of about 3 mm, width 22 mm and length of 450 mm. If you want to...
