Delta Kossel 3D printer 200MM length parallel arm fisheye carbon rod kit set K800 upgrade Diagonal push rods kit Delta*Fiber Carbon Rod length: 200mm*carbon filler-dimensional rod outer diameter 6mm, the inner diameter of 4mm, spherical plain bearings using M4 screws.*Use a professional mold making , to ensure that the same length , improve printing accuracy .Fish eye bearings:SA4P/KPacking list:6 x 200 mm length parallel arm fisheye carbon rodSA4P/K Fish eye bearings *6.Item specifics:Model number: Bracket(Support)Item type: Bracket(Support)