A holder for metric thread taps(M3/M4/M5/M6/M8/M10/M12) and their ratcheting holder with screw-on lid. Not a space saver but much nicer than a zip-lock bag.

Taps and ratcheting holder purchased from random seller on ebay.

Note: M12 and M10 taps does not fit in the ratcheting holder but I wanted them all in the same box anyway.