These adapters require MGN9H rails for the Ender 3 V3 SE, The length required is 300MM.
Improved X-axis Accuracy: Improved X‑axis accuracy, which can reduce X‑axis stratification, offset, and distortion of higher models.
High Strenght and Hsrdness: The product is made of selected materials, with high strength and hardness.Great workmanship, perfect replacement for the old one and has a long service life.
Complatible: The MGN9H Linear Slide Rail Guide length is 300MM for Ender 3 V3 SE.
Packing List: 1 x 300MM Guide Rail with Slider, 1 x Mounting Plate, Slide plate fixed seat x 2, M3X6 flat head x 4, M3X6 cup head x 6, M3X12 cup head x 6, M3 T nut x 6.