Holikme9Pack Drill Brush ，All Purpose Drill Brush with Extend Attachment for Bathroom Surfaces, Grout, Floor, Tub, Shower, Tile, Kitchen and Car，Corner,Masonry Brushes，Yellow

I bought this set to clean my dirt bikes and scrub various things around the house. I was very pleased to find that the bridges are all pretty good and are stiff enough to really get in and scrub hard. They don't seem to scratch up anything including plastics, but are abrasive enough to take bathtub scale off using even regular cleaners (non abrasive types). I can imagine they would scour even better with some powdered cleaners. The only thing I would say is a downside is the extension rod is a little flimsy compared to more name brand, but not much. Not to the point I would even worry about it. This whole set works really well and I'm pretty happy with it so far.

We have dark tiles in our shower floor, so after a week or so, the grout starts to turn whitish with a soap haze. These tools make it to where it cleans well and easily without breaking my back or arms. Get the right griot cleaner she you'll love these! I also use the smaller attachments for the small kitchen appliances.

I thought I could use the cone brush with a drill on the grout lines in the shower. It kind of worked but the bristles are not as stiff as a scrub brush. The larger brush works okay on the tiles. I'm keeping it as I could probably find other uses for the brushes.

Solid brushes for the price. Have been durable and for the cost I couldn’t have asked for more

These work ok for easy spots but the bristles could be more stiff to clean in grout. They do fit nice and tight in the drill and work good.

Durable brushes for those hard to reach places. I never thought about all the things I need odd size brushes for until I came across these. I use them around the house and on wheels

I bought these to try to take care of the white dishwasher residue that has accumulated on my expensive plastic food storage containers. They did an excellent job. I now see a billion uses for these brushes.

These brushes seemlessly attach to my drill and make my shower spotless. I'm thrilled with all the different attachments and brush shapes.