Suction base design: vacuum base, effortless to install on any smooth surface, without screw or mounting hole needed.  360 degrees rotation: 360 degrees swivelling head, easily adjustable to any angle as demand, for better work. Compact structure: light weight and mini body, space-saving , easy to store at home, convenient to carry around. Support columns: four support columns, with 0-25mm support range, fit for round, square and irregular objects. Wide application: suction vise with 12-55mm clamp range, to hold small parts, suitable for model making, watch repair, etc.  Specifications: Material: Aluminium Alloy ' ABS Color: Black / Silver (Optional) Type: With Support Columns / Without Support Columns (Optional) Clamp Range: 12-55mm Package Size: 8*8*9.3cm / 3.14*3.14*3.66in Package Weight: 350g / 12.34oz Note: Vise Clamp only, others in pictures are not included. Due to manual measurement, there may be deviation. Due to lighting or other reasons, it may slightly differ from pictures. Packing List: 1 * Vise Clamp