The ServoCity Steel Viper-Slide (14-Ball Carriage, 336mm Length, 244mm Travel) is a robust and durable linear motion solution, ideal for constructing lifting and reaching mechanisms. Crafted from 1.5mm thick steel, it offers superior longevity compared to aluminum alternatives, which are prone to wear. The design facilitates easy assembly with other components using M4 hardware, thanks to its strategically placed thru-holes, slots, and clearance holes.