Description: MAIN PARAMETER - Product: Ball vise. Material: Stainless steel. Height: 83 mm (3.27 inch).Base diameter: 98 mm (3.85 inch) SELF-CENTERING JAW SYSTEM - The mini ball vise has a self-centering jaw system made for stone setting, small engravings, and other precision work ROTATIONAL BRAKE SYSTEM - The internal rotational brake system lets the user choose the amount of rotational resistance from free to locked. There is a double ball bearing system for smooth rotation without looseness or wear inside 360 DEGREE ROTATION - The spherical bottom sits in a socket ring so you can tilt it in any direction. operation 360 degree hemispherical rotation, fine workmanship, sensitive operation WIDE APPLICATION - The full set standard block ball vise engraving setting tool is perfect for stone setting, small engravings, and other precision work. Designed for a unique combination of solid work support in a small and maneuverable size. Its low profile is suited for microscope work Specification: Material: Alloy Color: Silver Package Includes: 1 Set Mini Ball Vise Note: 1. The table skirt might be a little wrinkled during transportation. It doesn't matter.You can just spray some water and make it hung dry for a little time, The table skirt will be perfect. To iron it is Not recommended 2. Please allow 1-3 mm error due to manual measurement. 3. Color might be slightly different due to the color calibration of each individual monitor.