Brand new and excessive qualityMaterial: POMSize: as shownColor: black, transparentType: Big Model, Small Model, V ModelQuantity: 1Pc/5PcsScope of application: 3-D printers, engraving machines Features:- Compact, clean to carry, and broad applicability.- Made of nice materials with dependable quality, it would make sure the stability of the package and improve the carrier lifetime of the printing equipment.- The high-precision manufacturing activity ensures the soundness and printing accuracy of the equipment, enabling high-precision printing of the model.Notice:1. The real colour of the thing may be slightly assorted from the pictures proven on the web content caused by many factors such as brightness of your visual display unit and light brightness.2. Please enable slight handbook dimension deviation for the data. Thank for your understanding.3. 1cm=0.39''.Package Included: 1x/5x Bearing Pulley