It is faster to barely

Positives:
This year we had masses of plums! So I've been thinking about for the first time, if there is not an easier way than to cut by hand and remove seeds. The Westmark plum Ment Steiner has been a good choice - the plums are absolutely clean and without residues of the nuclei (but that may be due to the plums) gutted and evenly cut. It has subsequently a part which is carved in 3 places, so 4 Fourth moose, but still concatenate. The cores are collected cleanly in the container. As fast as I've never pitted prunes - or rather I did not get to because the kids want to always make :-)

The stoner is easy to clean and takes the rest of the year if you do not need him, only little space.

Negatives:
The guide rail is made of plastic, and this is not very dimensionally stable - the knife gets stuck often among the "ears" (see picture). While you can still insert a fruit, but has less space and runs the risk of being caught with your fingers on the blade. Or it pushes manually up - but next time it depends again. As I said, but it still works - but a star deduction.

Conclusion:
Super-practical part with a small weakness that is bearable but as stoning still much faster and cleaner than going with the hand.