This wire is strong enough to hold its shape well but malleable enough to shape with hand to use it compatible jewelry making. It is a practical copper wire that can respond well to manual and tool operations. It is made of copper and very durable. There are seven sizes compatible you to choose:size1,size2,size3,size4,size5,size6,size7. It is suitable compatible ring, earring, bracelets and so on. Item Name: Copper Wire Material:Copper Size Details: Size1: Copper Wire Diameter:0.02cm/0.01",Copper Wire Length:2500cm/984.25" (Approx.) Size2: Copper Wire Diameter:0.02cm/0.01",Copper Wire Length:1560cm/614.17" (Approx.) Size3: Copper Wire Diameter:0.03cm/0.01",Copper Wire Length:1000cm/393.70" (Approx.) Size4: Copper Wire Diameter:0.04cm/0.02",Copper Wire Length:620cm/244.09" (Approx.) Size5: Copper Wire Diameter:0.05cm/0.02",Copper Wire Length:500cm/196.85" (Approx.) Size6: Copper Wire Diameter:0.06cm/0.02",Copper Wire Length:310cm/122.05" (Approx.) Size7: Copper Wire Diameter:0.07cm/0.03",Copper Wire Length:300cm/118.11" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 X Copper Wire