Revolutionary Pocket Quik Sizer: Accurate Diameter Measurement with Patented Technology Review

I guess I'm expecting too much or I don't know how to deal with it. It's not precise enough for me. I'm used to using micrometers, so it's not quite right for me to compare.

Really cool product. Much slimmer than traditional plastic junk. I'm a bit concerned that the plastic strap (where the rubber meets the road) will either stretch or snap over time. I'm not deducting a star for my unfounded concern.

This is a must have tool for any shade tree mechanic or even a pro! Accurate, easy-to-use tool. I recently used it to find out the drill bit size for a project. Easy to carry but the only reason for the four stars is that the pocket clip is a little flimsy. But for the price I'll buy another one when I finally wear this one out. Of course, this is better than putting several heads on the bolt to determine the size of the head. I just could never visually determine the right size.