DescriptionAre you looking for a professional, yet affordable spherical ball screw? Are you in search of a sturdy, trustworthy tool that can do multiple jobs at once? If yes, look no further! Our professional spherical ball screw must meet you needs. It is one of the best choices for you.Features- Color: Silver. - Size: 4.5 x 2 x 2 cm. - Material: Carbon steel. - 20mm Diameter M8 carbon steel threaded Delta Parts Integral CNC Ball Screw for 3D Printer Accessories. - With Nickel plating in the surface, which can effectively prevent rust. - Used machine molding, to ensure the product accuracy. - Made of carbon steel material, the magnet can be sucked firmly. - Lightweight, easy to carry and use.