About this 3D model

Some of the filament I have received arrives in coils, without spools. This makes it difficult to use with the spool holders that I have. This spool is a press fit so you can separate the halves, place the coil in the spool, and then press the halves together. I have been using this spool with good success. It is sized to fit over the spool hanger that I also created. Hub diameter is 4.75"; overall diameter is 9".