4Pcs 3D Printer Filament Cleaner, Universal Dust & Static Electricity Removal Tool for Filament, Essential Accessories to Protect 3D Printers

I know I could have 3d printed these but since my son just wants to print things he wants to play with I decided not to spend time doing that, they work as advertised and my filament flows smoother!

I got a box full of dusty filament. One of these catches everything. They advise up to two. Truly great product. You can make it yourself but there are ready to go!

These would be 5 stars if they would stay closed. I have to secure them with electrical tape

They work well for what they are

Yep had my doubts, thought this can't work, has to hold up the filment flow... Well yes it does work and yes it slows the flow so up you flow rate by 1% and all good and still worth the buy.

I got this for my boyfriend to help with dust or dog hair. Clipped on easily, works as it should. No complaints.

It's 4 ferrite bead clamps with 4 pieces of foam. Overpriced, but they get the job done I guess. If I had to buy them again, I'd supply my own foam and clamps and make them myself, not worth the price.

These clips are well made and I haven't had any issues with them except you really have to squeeze down to engage the clips. Once they are locked, they stay that way. I sprayed a bit of WD40 in the foam to help lubricate the filament too and it worked a treat. Cut down on stringing. Overall, for $6, they are a nifty thing to have to help out your prints.