30-Tube Metal Chair Base Frame with Pre-Punched Holes, 18 mm Wall Thickness

This metal office chair base frame is built as a sturdy furniture part with a 30-tube design, forming a fixed open-frame structure for reliable chair support. Designed as a chair base and swivel chair base, it provides a stable mounting platform for attaching the seat and supporting everyday chair movement. The metal chair base frame includes pre-punched screw holes and mounting rails, making alignment and installation more straightforward during replacement work. With cylindrical metal construction, 18 mm wall thickness, and a 3.5 kg weight, this replacement chair support offers a solid feel and dependable structural strength. Intended as a replacement chair support, it helps restore the base of an office chair while the rounded corners and open frame keep the design practical and clean.