1、Made of high quality metal with durable construction. 2、High accuracy, exquisite craft, smooth surface. 3、Long life, low coefficient of friction, high versatility. 4、linear motion, with a small frictional resistance. 5、Linear shaft diameter is 16mm/0.6inch, and the effective stroke is 100mm/3.9inch. Features: Made of high quality metal with durable construction. High accuracy, exquisite craft, smooth surface. Long life, low coefficient of friction, high versatility. Linear motion, with a small frictional resistance. Linear shaft diameter is 16mm/0.6inch, and the effective stroke is 100mm/3.9inch. Specifications: Material: Metal Max. load: ＜20kg Linear shaft: 16mm(diameter) Motor standard: 57 Step Motor Repeat locating standard: ±0.03 Effective stroke: 100mm / 3.9inch Size: Approx. 26.3 x 11 x 8cm / 10.4 x 4.3 x 3.1inch Weight: 2947g Package Included: 1 x Sliding Table 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.