1、ALUMINIUM ALLOY: The slider is made of aluminum alloy with high purity, wear resistance and contact fatigue strength, can withstand high impact load. 2、GOOD PERFORMANCE: These slide blocks have the advantages of high accuracy, high rotational speed, low friction, low noise and wear resistance. 3、BALL BEARING: With fine workmanship, reasonable internal ball distribution, uniform gaps, excellent bearing, glossy chamfer and high accuracy. 4、EASY OPERATION: Open linear slide block, equipped with open linear bearings, used with aluminum alloy cylindrical guide rails or optical shafts. 5、WIDE APPLICATION: Including 4pcs sliders, widely used in machine tools, robots, speed reducers, printing, engineering machinery, and other fields.