Shubb capos are among the best-selling capos of all time. Their good reputation is due to their sturdy metal construction and ease of use. The adjustment screw evenly distributes pressure across the strings, making retuning almost unnecessary. The S3v is suitable for 12-string acoustic guitars and generally for very thick necks (often also for V-necks). Made of stainless steel with a ball head for comfortable and precise adjustment.