Solid, inexpensive, fits

Since a uniform diameter for all lenses may never come, one is faced with the choice to buy either your own filters for each diameter of its objectives (which quite goes into the money) or to look for an inexpensive alternative. And I have found in this set. The rings are not made of metal, but very stable, fit with no problems on my lenses and each other and allow me to use my (usually larger purchased) filter on the lenses with different diameters. If I need to change the lens and the filter, reacting the filter with the help of these rings naturally takes a little longer than if I have the appropriate filter for each lens diameter. Time which I do not have in some situations actually. But until I can spare the money for other filter and wants, this set is an inexpensive, very good and high-quality alternative which I can wholeheartedly recommend.