The lite Rotary Spool Holder is designed to support and hold the spool when it's attached to the lite. Each rotary spool holder has 3 spool claws to secure the spool in place. While the feeder unit pulls the filament, the rotary spool holder works in coordination to enable the spool to rotate during the printing process. This ensures continuous filament feeding and smooth operation. The rotary spool holder is designed in green versions to work with the left and right feeder units for filament feeding. For the green version, the two holders are installed on the bottom-right roller and top-left roller, rotating counterclockwise to feed filament to slots 1 and 3. Please note that the spool holder can only be installed and correctly operated on the roller that matches its color version. Please confirm that you have the correct version before purchase. Installation: Learn more about replacing the lite Rotary Spool Holder on for . Color: Green Material: plastic Package Contents: 1 * Printer Shaft Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.