• 6pcs Adjustable parallel sets
  • Minimum Measuring Range (Inch): 3/8''; Maximum Measuring Range: 2-1/4''
  • Length range from 1-3/4" to 5" closed.; case INCLUDED
  • Quickly adjustable and locked with screws for micrometer measurement.
  • Quantity: 1 set (6 pieces); Weight: 2.10 lbs (roughly)

nice to have in the tool box

Excellent product

For the money this is a great value, yes I had to loosen screws and add a little WD40 to make them slide E-Z, I check them for accuracy with a gauge accurate to .0005 and all pieces checked good. If you don't want to spend a little time cleaning them up, then you should spend 4 times what these cost.