Mine were plain but sturdy Sears wrenches...

Just went to that Ebay item..... notice that I also put round handles on mine... but I had to use my bottom bought wrench on three valves the first time I did a valve setting.... not much fun to be in the middle of setting them on a weekend with the MB dealer closed and find you need that bottom one....

Ok , for those of you who have not tried doing this yet,,, the part of the description which he left off is that you need about three hands to do this even if you have the bought wrench in addition to your two homemade ones... because the bought one can be set on the engine due to the little stand that comes with it... and you need one hand to move the feeler gauge back and forth while you tighten the two upper nuts on the valve.
A lot more fun with the right tools... Greg