Features: 1. Made of high quality material, durable to use. 2. It can withstand, fix, guide the mobile device or equipment and reduce its friction. 3. The surface of the linear guide is longitudinal groove which is used for guiding, fixing the part of machine, special equipment, instruments, etc. 4. It can be achieved high precision linear motion under high load conditions. 5. Widely used for automatic equipment, precision measuring equipment, and many other machines that need precision linear movement. Specification: Condition: 100% Brand New Model: MGN7H Material: Bearing Steel Slide Fixing Mode: Lock Type Weight: Approx. 61g / 2.2oz Linear Guide Size: Approx. 200 * 7mm / 7.9 * 0.3in Guide Block Width: Approx. 17mm / 0.7in Package List: 1 * Linear Guide Rail 1 * Linear Guide Block 1、Made of high quality material, durable to use. 2、It can withstand, fix, guide the mobile device or equipment and reduce its friction. 3、The surface of the linear guide is longitudinal groove which is used for guiding, fixing the part of machine, special equipment, instruments, etc. 4、It can be achieved high precision linear motion under high load conditions. 5、Widely used for automatic equipment, precision measuring equipment, and many other machines that need precision linear movement.