This is 500mm long rods of 1.5mm Diameter 55% silver solder (c/w Flux) with a melting range between 630 - 660 degrees Celsius. The datasheet of the chemical makeup is in the pictures. 

Supplied in varying quantity's with more discount the more you buy! Check out the star buys of 5 sticks saving nearly £12! And 10 sticks saving nearly £33!!

The silver solder comes with the following health and safety warnings: 

H335: May Cause Respitory irritation

H334: May cause allergy or asthma symptoms or breathing difficulties if inhaled

P261: Avoid breathing dust/fumes/gas/mist/vapours/spray.

P270: Do not eat, drink or smoke when using this product.

P280: Wear protective gloves/protective clothing/eye protection/face protection

Rods will come in a coil (like in the picture) Packed in a jiffy bag