FLEX-RITE: This beading wire is made of 21 strands of stainless-steel that are then nylon coated in a clear color. The wires measure .018 inches (.45mm) in diameter, on a 30-foot (9.14m) spool. This flexible wire has a 24.6lb break strength. HIGH QUALITY: Using state-of-the-art micro-wire technology to produce a wire that is strong, soft, and flexible, Flex-rite is designed to provide an excellent drape. In addition, it is kink resistant, abrasion resistant, supple, and easy to use. VERSATILE: Flex-rite comes in a selection of metallic and vibrant colors, as well as 4 sizes to accommodate a variety of projects. The 7 strand is a good quality for general purpose use. The 19 and 21 strands provide a better flexibility and softness, while the 49 strand is a professional quality, that offers long lasting superior strength. JEWELRY SUPPLIES: Because of its functionality, this bendable, micro-fused thread is great for beginners and advance jewelry makers. When you want to attach beads to a pendant or string a bracelet, this thin wire is up for the task and accommodates many different sized beads. THE BEADSMITH - 40 years in the making! 💎 Trusted to bring you the best quality beads, tools, and supplies. Making jewelry should be a positive experience. Let us join you in the creative journey. Our experts are here to help. Your satisfaction is important to us. Contact us with any quality issues or concerns.