Feature: 1. 100% brand new and high quality. 2. Made of aluminium alloy material with black anodized surface, it is durable. 3. This is a single X for linear guide sliding track 4. Precision machining and stable performance 5. Widely used in production machinery, testing equipment, optical experimental measurement, fine‑tuning displacement, precision positioning, quantitative movement, etc. Specification: 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 single X for linear guide sliding track. 4. Precision machining and stable performance 5. Widely used in production machinery, testing equipment, optical experimental measurement, fine-tuning displacement, precision positioning, quantitative movement, etc. Specification: Condition: 100% Brand New Model: SEMX40-AS Material: Aluminium Alloy(black anodized surface) Table Size: 40*40mm Load Resistance: 19.6N Stroke: ±6.5mm Centimeter Card Accuracy: 0.01mm Parallelism: 30um Moving Parallelism: 10um True Straightness: 3um Moving distance adjustment: micrometer differential head Sliding Track: linear guide Rail Type: cross roller type Weight: Approx. 168g / 5.9oz Size: Approx. 62 * 70.65 * 20mm / 2.4 * 2.8 * 0.8in Package List: 1 * Linear Stages Note: Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.