Dragon Skin Plus strings are wound with phosphor bronze, which produces a full, warm sound, making them powerful, easy to play, and durable. Using DR's proven combination of round core and phosphor bronze, both the core and winding have been upgraded to deliver a rich, musical, and well-balanced sound. Accurate Core Technology creates grooves in the core that encase the windings, allowing the core and windings to vibrate more as one, fully realizing the string's full potential. Designed for better feel and sound, Dragon Skin Plus is a completely new string unlike any other. DAP-10 Gauge: 10-14-22-30-38-48 Products may not be available depending on stock availability. In addition, if the item is out of stock, we may not be able to order it for you due to reasons such as it being discontinued or the manufacturer not having any stock. We appreciate your understanding in advance.