Description: Upgraded MK10 Extruder Drive Feed kit for CR-10, 10S, S4, S5 Can replace the acrylic parts. Fits for all 1.75mm filament. It is more stable and durable. With mounting screws, easy to install. Specification: Material: electronic components Product detailed size: product size 5 x 3.1 x 1.6cm / 1.97 x 1.22 x 0.63inch Package Includes: 1 Piece MK10 Extruder Drive Feed Kit 1 Piece screw Note: Color maybe slightly different due to different monitor. The above size is measured by hand, please allow slightly difference. Thanks !