Application: the stairway protection and staircase protection. In both cases, I have the opportunity to mount either in the distance / stairs a guard or placing the grille between newel post and wood room wall. Since it is very close to levels is a guard with sill (tread / trip hazard) not an option for me.
Lindam Numi: top quality, makes technically gifted visual fun, to build the part together. Unfortunately, it does not fit visually to our white stairs, so I did not take it. Who is this matter is hereby a premium product at a relatively high cost.
Pinolino 171417: weak quality at a very high price. I have the technique to jam with lowered grid with rubber feet between the posts unfamiliar. In addition, parts of the grid are poorly finished (wood holes are not trimmed). The whole grid seems to cheap, and for the price: returned.
Geuther 2732 WE: well-made product, very flexible in the installation (in front and in between), I have fully installed and tested for several days due to the optically very good and very appropriate for the white staircase impression. Is quite difficult, you always have to be careful when you close that the bow is pushed so far into the recording that the backup safety bar comes down and the child protection ensures. In addition, the lifting mechanism is not mature, which means that with me after a few days the letter were loose wobbled. Here you would have more stable and lower screw / drill as planned. All in all pretty, but in practice (about 30x a day to use) little gratifying.
Lindam 04434201: reasonably priced grid of metal (with me know). Has initially very simple in appearance, but becomes relative when assembling. Is only suitable for the intermediate building, which is now the preferred option for me. Very easy to use opening systems (with one hand what is going on quite heavy at Geuther 2732) has fully dotted with us and is now used up and down. For the price of less than 30 euros my top favorite. Can be removed even if not even needed.
Conclusion: Looking much and yet be satisfied with the Cheapest: 04434201 Lindam buy recommendation!