Features: brand new and high quality With strong suction, high precision, good corrosion resistance. Widely used in the field of electric welding.Used for welding, soldering, pipeline installation, assembly, magnetic pick-up tools, etc. Heavy-duty for arrow design steel magnet supports material at 45°, 90°, and 135° for easy access. To angle and hold your metal projects together before fusing the pieces together to allow hands free welding. Constructed of high quality steel with a powder coated finish, these welders magnets are durable, long lasting, and resistant to rust and corrosion; The center hole on the magnets allows you to easily grab the weld magnets. Specifications: Material:Steel Type:Large/Middle/Small Size:as the Picture Show Package Includes: 1 x Magnetic Holder Welding Corner Fixer note: Please allow a size difference of 0-3mm due to manual measurement