Do not give your 3 year old kids furnace motors to play, they may choke with that 9x9 inch thing weighting only 5 pounds. Think of the children, would'ya.
Wait until your kids have grown into mutant teenagers....
This, the small print user manual for an Aldi branded set of digital calipers and who should be safegaurded from them. Basically no-one except a
fully qualified grown up with zero psychiatric certifications should be using them. Maybe not even then?
OMG WTF I'm so frightened of anything that contains a
numeric scale 
Btw, on the subject of dodgy tech, these calipers are cheaply made but for the money, remarkably accurate!