Features: Stable: Strong and durable, the bracket won't move during operation Smooth: The drawing material slides smoothly to avoid the occurrence of stuck wire winding in the reel Flexibility: According to the size of its own consumable filament, the range of material frame adjustment, more flexibility Material: Made of plastic, it is pratical and durable, has long service life Colors: There are black, transparent two colors for you to choose, must one for you Specification Material: Plastic, metal Color: Black, transparent Size(L x W): About 22.7 x 8.1cm/9 x 3.1inch Package included: 2pcs x Filament Spool Board 1pc x Wrench 4pcs x Metal Pipe 4pcs x Bearing 8pcs x Screws