Neck Adjustment Nut & Saddle Grinder Polishing Grinding Abrasive Kit Height AdjustmentDescription:1. Apply to the nut to adjust the bar and saddle, polished in use and easy to use.2. With nut holder to correct the angle, let the nut keep in parallel, conducive to polishing.3. The grinding machine is designed according to the radian of the nut and saddle.4. Both sides are anti-slip strip. It can be very tight to tighten the nut or saddle.5. With height adjustment, adjust the metal wheel with the blue steering wheel to find a better height for sandblasting saddle and nut.6. The sanding is very gentle and very stylish. Specifications:Brand: KAVABORGColor: Blue & Gray Material: Plastic & Metal Application: Nut & Saddle (Less than 75mm)Weight: 150g / 5.29oz Size: 18.0x13.5x3.0cm / 7.1x5.3x1.2in Instructions:1. Place the nut or saddle in the grinder, leave it parallel.2. Then set the pulley at the right height.3. Hold the sander and polish it back and forth on the sandpaper. Package including:1 pc. x Saddle nut and grinder1 pc. x Nut HolderNote:1. Please allow 1-2mm error due to manual measurement. Make sure you don't mind before bidding.2. Due to the different light, angle and display taken by the camera, the picture may not reflect the actual color of the subject.3. Thank you for your understanding.