Different colours of wire can be fun to work with when you are wrapping beads with wire, so some of the wire will show, or when you are using clear beads. While many different materials can be used to string beads, the most popular and durable thing to string your beads on is beading wire.
The first thing that is important to know about the wire is its gauge. The higher the number your wire's gauge is, the thinner it will be. So a 32-gauge wire is thinner than a 22-gauge wire.
Wire in the gauge range of 22 to 24-gauge is good for a lot of general beading projects done with glass beads or crystals. 30 and 32 gauge wire is better for work with seed beads and weaving projects. This gauge range gives you similar flexibility and strength as beading thread.