The Craftsman 4 Rail Socket Holder is a tool storage organizer designed for holding 1/4, 3/8, and 1/2” sockets. This product is a stylish and practical addition to any workshop or tool cabinet, providing easy access and organization for your sockets. With a durable construction and a weight of 2.3 lbs, this socket holder from Craftsman is a reliable and convenient solution for keeping your tools neat and tidy.