Feature: 1. Main body is made of aluminum alloy material, which is light weight 2. Strong, friction-resistant and silent, possess scratch-resistant, drop-resistant, and corrosion-resistant 3. Gear rotation handle control, dovetail groove type guide rail, come with high accuracy, smoothness, high load resistance, and stable movement 4. X‑axis linear stage provide R angle protection, which guarantee safety 5. Gear + rack type knob, you can manually rotate the knob to advance the gear drive Specification: Item Type: X-Axis Linear Stage Model: HB-A90Table Size: Approx. 90 x 40mm / 3.5 x 1.6in Moving Direction: X axis 1 direction Body Material: Aluminum alloy (black anodized) Drive Mode: Manually rotate the knob to advance the gear drive (gear + rack) Sliding Track: Rack guide Rail Type: Dovetail groove type Number of Threaded Mounting Holes on the Countertop: 10 Threaded Mounting Hole Diameter: Approx. 4mm / 0.2in Threaded Mounting Hole Depth: Approx. 7.5mm / 0.3in Horizontal Load Resistance: 39.2N Moving Stroke: ± Approx. 35mm / 1.4in Minimum Scale: 0.01mm Straightness: 0.03mm. Package List: 1 x X-Axis Linear Stage