This is a set of 4 Ernie Ball Regular SLINKY 2221 10-46 electric guitar strings. ※ According to information from a repairman acquaintance, many counterfeit Ernie Ball strings made in China are being sold on flea markets, auctions, and Amazon, so please be careful. These are genuine products. Also, strings with "ELEMENT SHIELD" written on the lower left of the back are products manufactured before 2020, or imitations. Current genuine products from 2021 onwards have "ELEMENT SHIELD PLUS" written on them, so please be aware. These are current products. Free shipping. Available for immediate purchase. Gauge: .010, .013, .017, .026, .036, .046 【Manufacturer's Website】 The Slinky series features wound strings made with tin-plated hex steel cores and nickel-plated steel wire, combined with plain strings made of high-hardness tin-plated high-carbon steel. The balanced sound without any quirks can be widely used regardless of genre. Genuine ERNIE BALL 2221 guitar strings (10-46) REGULAR SLINKY Brand: ERNIE BALL