Features: 1. 100% brand new and high quality. 2. Made of aluminium alloy material with black anodized surface,it is durable. 3. This is a XY linear guide sliding track, used for capacitive touch screen production equipment, fixtures, optical instruments, etc. 4. Precision machining and stable performance, good using effect. 5. Suitable for laboratory precision inspection, mechanical equipment positioning and movement, various fiber coupling, optical waveguide alignment, core adjustment, packaging system, etc. Specification: Condition: 100% Brand New Item Type: Linear Stages Model: SEMY40-AC Material: Aluminum Alloy (Black Anodized) Moving Distance Adjustment: Micrometer Differential Head Sliding Track: Linear Guide Rail Type: Cross Roller Type Table Size: Approx. 40 * 40mm / 1.6 * 1.6in Load Resistance: 17.6N Stroke: ±6.5mm Centimeter Card Accuracy: 0.01mm Parallelism: 50μm Moving Parallelism: 20μm True Straightness: 3μm Product Size: Approx. 100 * 110 * 45mm / 3.9 * 4.3 * 1.8in Package list: 1 x Linear Stage Note: 1. Please allow 1-2mm error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard. .