These adapters require MGN9H rails for the Ender 3 V3 SE, The length required is 300MM.
Dual linear rails,more stable than single rail version and wheel movement system.
Quick Installation and Upgrade.
For the Ender 3 V3 SE option, you need to print an additional Y-axis limit block to complete the assembly.Please do contact us to get the document.
Packing List: MGN9H linear guide (300mm) x2, M3X6 cup head x 26, M3X8 cup head x 4, M3X12 cup head x 6, M4X20 flat head x 6, slide plate fixed seat x 4.