BALITENSEN K800 Upgrade Diagonal Carbon Push Rods Arm Kit 217mm Length 4x6mm Parallel Arm Fisheye Rods for Delta Mini Kossel 3D Printer Part (6pcs/set) Go to amazon.com Related posts Top delta kossel parts for 2022 DescriptionSpecification: Lenght of carbon rod: 180MM Outer Diameter: 6MM Inner Diameter: 4MMPacking List: 6pcs Carbon Rod With Fisheye bearing