.925 Sterling Silver. Use to create jump rings and chain ends. Note: When making jump rings it is critical that the ends are flush and that they touch with no gaps. This wire will not solder if the ends are not touching. Create tension by closing the jump ring so the ends pass each other, then open again aligning the ends perfectly. Then apply a fire coat and heat, directing a tight, pointy flame at the seam until the piece reaches flow temperature, which will be a dull salmon color. Remove the flame immediately and quench, pickle and polish. Bring it up to temperature quickly. It is important to get it in and out with the flame as quickly as possible. Be sure to not heat slowly as this will cause the solder to breakdown. If you are ordering more than 1 foot and would like a continuous length, please call customer service or simply specify any requirements in the order notes.