Description: 100% brand new and high quality 3D Printer MK8 Extruder Aluminum Block DIY Kit Used for 1.75mm filament Extrusion head aluminum block For Reprapi3 Type: Normal, Left Hand, Right Hand (optional) Specification: Material: Aluminum Alloy Size: Approx. 110x 60x 17mm/ 4.33x 2.36x 0.67inch Color: As Pictures Shown Package Includes: 1 set of MK8 Extruder Kit (nuts may have a little bit difference in shape and color from the pictures) Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement