¢ Triple Lens¢ Can Combine Lenses to Increase Strength¢ Magnification of Each Lens: 3.3x¢ Lens Diameter: 22mm¢ Glass Lens¢ Aluminum Body¢ Adjustable Length¢ Pivoting Loupe¢ Clip on Any Kind of Template Sideways¢ Easy to Flip Away When Not in Use