Fangrui Product Details Intelligent Rotation: Quick Clamping Design Can Be Clamped Tightly On Platforms. The Blade Fixture Can Automatically Increase, And Can Easily Fix The Blade Without Using Any Wrench And Screws, And It Not Loosen During Use. Safety: We Understand The Importance Of Safety When Dealing With Sharpening Tools, Your Purchase Constructed With A Safety Design--the Handle Is On The Above Of Blade, It Not Hurt Your Hand When You Push Back And Forth The Stone To Your Knife. Multipurpose Use: For Sharpening Different Kinds Of Knives: Kitchen Knives, Sharpener, Pocket Knife Sharpener, Scissor Sharpener, Chisel Sharpener, Blade Sharpener, Etc! Your Blade Get A Edge Just In A Few Seconds! 360 Rotation Flip Design: The Innovative New Flip Design Allows To Flip Over To Sharpen Other Side, You Can Unscrew The Screw On The Vertical Rod To Adjust The Ideal Angle You Want, Restore Knife Blades Quickly And Safely. (we Not Indicate The Angle On The Vertical Pole Because The Blade Width That Out Of The Clamp Affect The