A handy handle for holding whatever. Loosen the collet - insert drill bit, awl, pointy thing - whatever you need a handle for, and tighten collet. The chuck - the grabby thing inside - comes out and can be reversed, for 4 different size options, from 0 to 3 mm. Overall length is 4.5 inchs. Very useful if you are the sort of person that is inclined to adapt things as tools as you need them.
By the each.