Features 【Strong 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. 【Adjustable 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. 【Cast 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. 【Long 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. 【Strong Compatibility】This base is compatible with most dial indicators on the market. Its size is universal and it is a highly professional accessory. Specification: Item Type: Dial Indicator Base Material: Cast iron Maximum Pull: 176lbs Package List: 1 x Dial Indicator Base Package List 1 x Dial Indicator Base