ProTeam 100110, 3" Dust Brush W/Reducer 1-1/2", Brown

This is an 1 1/4" not an 1 1/2" Dust brush. It is 1 1/4" ID 1 1/2" OD. And as far as I can tell there is no reducer on this; it is a straight 1 1/4 all the way.

1.5 inch OD, not ID. If you are selling 1.5 inch attachments for a Shop-Vac 1.5 inch hose that would mean a 1.5 inch Shop vac's hose and extensions would fit. I digress, this is globalization at it's best. Herro and Goodbrye.

The "fuzzy" part fell off the first time I used it. I popped it back on, but noticed a little while later it was gone again and I never found it. Not helpful while working in an attic in 100° temps. Definitely frustrating.

This is nice quality and the size is right but the ridges do not make it tight. I put an elastic band around it to help make it tight so that it could be used and that works.

My wife and I do post construction cleaning. This is the best brush $$ can buy.

Absolutely does not fit the vacuum nozzle - short return window : now I am stuck with it

I like the sturdy construction and build quality. I've used for a month or so. The bristles are NOT falling out and it handles the rough and tumble aspects of a workshop environment (drops, on/off tugging).

The diameter of the part that goes into the vacuum cleaner wand is NOT 1.5". It is 1-3/8" or 1.875". The diameter of the outside of the cylinder is just a tiny bit more than 1-3/8".