30 foot spool of .019" diameter clear Soft Flex® wire. This best selling wire is brought to you by state of the art, micro-wire technology. It is constructed of either 49 micro woven, stainless steel wires, braided together and then nylon coated. This micro-wire technology gives you the most flexible and knottable stainless steel in the world. It is hypoallergenic, and since Soft Flex® Wire is marine quality, it can be worn in and out of salt and fresh water. Each diameter was designed to handle certain levels of abrasion, everything from soft materials like pearls and seed beads to rougher materials like glass, minerals and metal. The purpose of our product is to eliminate the frustrating task of re-stringing your designs due to cutting and breakage. We recommend you consider the abrasion level of the beads you are stringing in order to determine the appropriate diameter of Soft Flex® Wire. The thicker the wire, the better resistance to breakage it will have. .019 was designed for use with small to medium glass beads, Austrian crystals, silver, pewter, 80% of freshwater pearls and seed beads. Recommended when you are designing with a variety of materials.