Check the listing for details. DR RDB-40 Red Devils Coated Bass Guitar Strings gauges 40-100. Condition: New. Listed at 33.99 USD. This sale is for 1 set (4 strings per set) of brand new DR RDB-40 Red Devils Coated Bass Guitar Strings Individually boxed... new... never opened or used!Gauges 40-60-80-100The K3™ Coating is the first coating that players report, "sounds as good or better than uncoated strings." DR's new, remarkable, proprietary and patented #8487168 K3™ Technology Coating is the first coating that makes no apologies and no excuses for not delivering sound equal to uncoated strings. Players tell us that these strings have more volume, less unwanted overtones, greater clarity and articulation then standard, uncoated strings. Yet, they provide the same protection due to corrosion and perspiration as well as increased tone life that coated strings are known for. Visit My eBay Store: gimmesomestrings The older packaging for these strings was black and read "Extra Life" Now, the same strings come in the red box. DR's Extra-Life is the world's finest coated string. Extra-Life has a super thin advanced .0003 coating on the plain strings and on the wrap wire. The wrap wire is coated before the strings is wound. The 1st and 2nd plain strings are coated before the ball ends are attached. This proven coating has been applied to products in the music field for years. It includes a corrosion inhibiting lacquer for extra protection against damaging substances such as perspiration, dirt, humidity, and "acid hands". DR's Extra-Life strings offer players a superior coated string without sacrificing the crisp tone, clarity, and volume of traditional DR Handmade Strings. International Shipping: Please use Ebay's Global Shipping Program. We promise fast shipping (usually within 1 business day). US and international orders welcome!Shipping will be handled by USPS. USPS Express Mail (overnight) is available (U.S. orders only).Thank you!