Feature 1 APPLICABLE MODELS: Suitable for Ender 3, for Ender 3 V2, for Ender 3 Pro and other similar structure models, the print size is 220x220x250mm 2 ALUMINUM ALLOY BLOCKS FOR FIXThe length of the single rod is 36.5cm, and the two sides are connected by aluminum alloy fixing blocks, which enhances the Z axes stability of the 3D printer 3 SOLVE JITTER PROBLEMThe boom group effectively solves the Z axes jitter problem of the aluminum profile structure 3D printer and improves the printing effect 4 CORROSION RESISTANT STAINLESS STEEL: Also adopt stainless steel materials, possess corrosion resistance, good mechanical properties, high strength 5 COMPLETE ACCESSORIES: Supporting rod set equipped with screws, nuts, 2 kinds of wrenches, convenient for your installationItem Type: Supporting Rod SetColor: BlackProduct Material: Aluminum alloy, stainless steelPull Rod Length: Approx. 36.5cm / 14.4inApplicable Models: For Ender 3, for Ender 3 V2, for Ender 3 Pro and other similar structure models, the print size is approx. 220 x 220 x 250mm / 8.66 x 8.66 x 9.84in Package List2 x Pull Rod4 x Connector16 x Screw12 x Nut1 x Hex Wrench1 x Wrench1 x User Manual