Plus: -suitable for Wagner 915 -low price -incl. Padding "Security" Minus: -Bristles for about 2/3 of the product size Manufacturer's bristles don't last long. I've heard vinyl bristles don't generally last very long when grouting, so I decided to get some extras as I have a fair amount of grouting to do. I saw them and was happy to see that they work with my Wagner (and I can confirm they fit and work well!). They get the job done, just be aware that they are about 2/3 the length of what you would get directly from the manufacturer (so expect a slightly shorter lifespan). Also, they seem to wear out pretty quickly (though maybe that's a little standard). Although for the price you can't go wrong if you pick up a box to keep on hand and stock up!