Features: 1Strong Magnetism: There are 2 super magnetic magnets on the base, which can provide up to 176lbs of pulling force, and the magnetic force will increase on thicker metal parts. 2Adjustable Knob: Twist a black knob on the base to adjust the 3 rotatable joints in any direction and position, making it easy for you to adjust the angle. 3Cast Iron Material: Cast iron has high wear resistance and wear resistance, and also has excellent vibration damping properties, which can stably support the dial indicator. 4Long Service Life: The magnetic force of this base is strong and long lasting, and the bracket has good wear resistance, which greatly prolongs its service life. 5Strong Compatibility: This base is compatible with most dial indicators on the market. Its size is universal and it is a highly professional accessory. Package included: 1 x Dial Indicator Base