I have found them to be a perfect weight, holding their form, not bothersome to sensitive ears, and the enamel coating holds up very well. They do not contain nickel or lead. Perfect! I use them on many of my mid-priced earrings.
Here is a list of the available color: Non-tarnishing Silver Plate, Black, Antique Silver, Raw Copper, Non-tarnishing Copper, Tinned Copper, Rose Gold Colored, Amber, Burgundy, Non-tarnishing Gold Colored, Red, Vintage Bronze, Raw Bronze, Aqua, Blue, Dark Blue, Teal, Baby Blue, Green, Yellow Brass, Rich Low Brass, Non-tarnishing Brass, Smokey Quartz, Ultra White, Antique White, Hot Pink, Magenta, Silvered Rose Pink, Silvered Blue, Silvered Ice Blue, Silvered SeafoamA, Silvered SeafoamB, Silvered Orchid, Silvered Peacock Blue, Silvered Lemon, Brown, Kelly Green, Purple, Silvered Amethyst, Silvered Tangerine, Silvered Pacific Blue, Silvered Peridot, Silvered Fuchsia, Silvered Peach, Silvered Christmas Green, Silvered Lavender,Titanium Colored, Antique Copper, Blue Steel, Hematite
I have them available in over 40 wonderful colors. Too many colors to fit on the color wheel. click the link to see all of my colorful enamel coated wire colors up close! http://www.etsy.com/shop/UnkamenSupplies/search?search_query=20+gauge+enameled+coated+copper+wire&order=date_desc&view_type=gallery&ref=shop_search
I also make these in 14kt Rose Gold Filled, 14kt Yellow Gold Filled, Argentium Sterling Silver, Sterling Silver, brass, bronze, copper, stainless steel and offer oxidization for a great vintage look
The wire I use in made in the USA. It does not contain nickel or lead.