From the manufacturer Johnson Matthey, this is the Silver-flo 55 Rod solder kit, ideal for low-temperature brazing. It comes with easy-flo flux and six rods of silver at 55%, each one being cadmium-free and measuring 600mm, with a diameter of 1.5mm. The rods have a low melting temperature combined with a small melting range and are ideal for producing tidy joints, making them particularly suitable for seawater applications.