1kg Injection Molded Master Spool for D3D Sigma Refill Coil

this item is great saves on wasted spools Just wish you had PLA in stock

It looks really sturdy and well made. I know I could print one but I think at this price it's worth it

These are great. Replace the thumb screws with pan head screws so they don’t catch on your spool holders.

Works great. I had to build a spacer so as protruding thumb tightening screws would not catch on the spool holder.

Love saving on having all the empty spools, not to mention the filament being a few dollars less when it's time to refill. The open sides make it really easy to see exactly how much filament is left. Most spools I've had even if they have windows on the side they don't go all the way to the center so you can tell you are getting close but can't quite see how close. Only down side I'd really mention is that the screws interfered with my stock spool holder. Wasn't a huge deal though as I was planning on making a new spool holder anyway.