ELEGOO Neptune 4 Upgrade Kit （ Not Pro, not Plus, not Max） Size:Z-axis dual synchronous belt kit（The Z-axis linear rails must be upgraded first） Many thanks to S&M Makers

Many thanks to S&M Makers

Our enthusiastic American customer

S&M Makers

After installation is complete

ELEGOO Neptune 4 Upgrade Kit （ Not Pro, not Plus, not Max） Size:Z-axis dual synchronous belt kit（The Z-axis linear rails must be upgraded first） Many thanks to S&M MakersProduct features: 1. The installation base is made of aerospace grade aluminum alloy with CNC processing, good flatness and verticality, high dimensional accuracy, lightweight product, and reduced motor load. 2. The Y axis adopts a unique structure of double guide rails and double sliders, which makes the Y axis more evenly and stably loaded. The linear guide rails and sliders are made of high carbon chromium bearing steel and use electroplating rust