1 Centimetre 7 Strand Beadalon Wire 0.015 Sterling Silver (0.38mm). Size M breaking strength 3kg 7Lb. Sold by the centimetre off the spool.
This wire is expensive to buy by the spool, but you can nowbuy just enough for your project at an affordabe price.

Made in The United States, Beadalon are the manufacturer of premium multi-strand jewellery wire. Beadalon stringing wires are multiple strands of stainless steel wires contained within a clear nylon sheath. The greater number of strands, the more flexibility and less likely to kink.

Good for General craft projects, Beadalon 7 Strand is economically priced, and has the largest variety of sizes.