- High quality zirconium oxide<br>- No magnetism、 no affection、 no electrostatic and high hardness<br>- Usage: computer、 communication and electronic equipment<br>- Portable size and weight for professional or home tool<br><br><br><br />- High quality zirconium oxide<br />- No magnetism、 no affection、 no electrostatic and high hardness<br />- Usage: computer、 communication and electronic equipment<br />- Portable size and weight for professional or home tool<br /><br /><br />                                                                                                                                Dimensions: 4.84 in x 0.51 in x 0.51 in<br />Weight: 0.74 oz